Finding the Third Proportional to 3,719.25 and 8,121.09
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Solution
The third proportional to 3,719.25 and 8,121.09 is: 17,732.65
Step by Step Solution
- Step 1: Write the proportion equation
3,719.25 : 8,121.09 = 8,121.09 : x - Step 2: Convert to fraction form
3,719.25/8,121.09 = 8,121.09/x - Step 3: Cross multiply
3,719.25x = 8,121.09 × 8,121.09 - Step 4: Simplify right side
3,719.25x = 65,952,163.70 - Step 5: Solve for x
x = 65,952,163.70/3,719.25 - Step 6: Final answer
x = 17,732.65
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.