# proportional

[ pruh-pawr-shuh-nl ]

/ prəˈpɔr ʃə nl /

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adjective

having due proportion; corresponding.

being in or characterized by proportion.

of, relating to, or based on proportion; relative.

Mathematics.

- (of two quantities) having the same or a constant ratio or relation: The quantities y and x are proportional if y/x = k, where k is the constant of proportionality.
- (of a first quantity with respect to a second quantity) a constant multiple of: The quantity y is proportional to x if y = kx, where k is the constant of proportionality.

## OTHER WORDS FOR proportional

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## Origin of proportional

First recorded in 1350–1400; Middle English proporcional, from Latin prōportiōnālis; see proportion, -al

^{1}## OTHER WORDS FROM proportional

## WORDS THAT MAY BE CONFUSED WITH proportional

proportional , proportionateDictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

## How to use proportional in a sentence

## British Dictionary definitions for proportional

proportional

/ (prəˈpɔːʃənəl) /

adjective

of, involving, or being in proportion

maths having or related by a constant ratio

noun

maths an unknown term in a proportionin a/b = c/x, x is the fourth proportional

## Derived forms of proportional

proportionality, nounproportionally, adverbCollins English Dictionary - Complete & Unabridged 2012 Digital Edition
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