Proportion

Type it

Ways to write the Proportion symbol
UnicodeU+2237
LaTeX::
HTML entity∷
Character∷

Meaning

States that two ratios are equal, in the older notation a : b :: c : d. Today it is usually written as an equation between fractions. Compare with Ratio and Colon.

How to read it

1 ∶ 2 ∷ 3 ∶ 6

is read “one is to two as three is to six”.

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