SOLUTION: How do you do porportions?

Question 110118: How do you do porportions?
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
A proportion is a comparison of ratios.
It is an equation that states that two ratios are , such as

Proportions always have an sign!
A proportion can be written in ways:
or
you read them: "4 is to 8 as 1 is to 2"
In each proportion the and term (here 4 and 2) are called the .
The and terms (here 8 and 1) are called the .
In simple proportions, is examine if the fractions ; if yes, then the proportion is .
�this is a true proportion, since both fractions reduce to 1/2.
In simple proportions, you can when solving for a missing part of a proportion.
Remember that both fractions must reduce to the same value

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