Finding the Third Proportional to 1,242.84 and 2,721.09
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Solution
The third proportional to 1,242.84 and 2,721.09 is: 5,957.59
Step by Step Solution
- Step 1: Write the proportion equation
1,242.84 : 2,721.09 = 2,721.09 : x - Step 2: Convert to fraction form
1,242.84/2,721.09 = 2,721.09/x - Step 3: Cross multiply
1,242.84x = 2,721.09 × 2,721.09 - Step 4: Simplify right side
1,242.84x = 7,404,351.20 - Step 5: Solve for x
x = 7,404,351.20/1,242.84 - Step 6: Final answer
x = 5,957.59
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.