Finding the Third Proportional to 1,315.13 and 2,220.19
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Solution
The third proportional to 1,315.13 and 2,220.19 is: 3,748.11
Step by Step Solution
- Step 1: Write the proportion equation
1,315.13 : 2,220.19 = 2,220.19 : x - Step 2: Convert to fraction form
1,315.13/2,220.19 = 2,220.19/x - Step 3: Cross multiply
1,315.13x = 2,220.19 × 2,220.19 - Step 4: Simplify right side
1,315.13x = 4,929,232.54 - Step 5: Solve for x
x = 4,929,232.54/1,315.13 - Step 6: Final answer
x = 3,748.11
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Why These Related Problems?
These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.