Is it a Proportion?

Is it a Proportion?

Two ratios that form a proportion are equal to each other.

Example:   $\frac{2}{3}=\frac{4}{6}$   The proportion is read "2 is to 3 as 4 is to 6"

How to tell when two ratios form a proportion:

• Cross products are equal

• Simplify to the same number

• You can multiply by the same number

Multiple Choice

Does the table represent a proportional relationship?

• Yes.
• No.

Multiple Choice

Write if the given proportion is 'True' or 'False':
8 : 9 = 24 : 18

• TRUE
• FALSE
• dont know
• none of these

Multiple Choice

Determine if the ratios are proportional.
4/5 and 15/20

• Yes
• No

Multiple Choice

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Multiple Choice

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Multiple Choice

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Multiple Choice

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Multiple Choice

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Multiple Choice

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Multiple Choice

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Multiple Choice

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion