Equivalent Proportions

                    Lesson 1

Problem:                   State whether the ratios are proportional

4 = 20

6    30

                                                                                                Give a yes or no answer

Solution                    Cross multiply the given ratios

Step 1:  

Solution 4 × 30 = 120

Step 2:                        

6 × 20 = 120

Solution                   so, 4 = 20

Step 3: 6    30

They are proportional

                                                            Solution                    The answer is: Yes

 Step 4:                                                                      

 Complete   

                                                            Try two practice problems:  

Find the proportion between the numbers

A.	1/10 = 6/60
B.	4 to 9, 16 to 32

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