Finding the Third Proportional to 1,220.91 and 2,638.41
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Solution
The third proportional to 1,220.91 and 2,638.41 is: 5,701.66
Step by Step Solution
- Step 1: Write the proportion equation
1,220.91 : 2,638.41 = 2,638.41 : x - Step 2: Convert to fraction form
1,220.91/2,638.41 = 2,638.41/x - Step 3: Cross multiply
1,220.91x = 2,638.41 × 2,638.41 - Step 4: Simplify right side
1,220.91x = 6,961,187.54 - Step 5: Solve for x
x = 6,961,187.54/1,220.91 - Step 6: Final answer
x = 5,701.66
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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.