Finding the Fourth Proportional to 3,873,186.16, 5,344,982.64 and 2,154,306.70
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Solution
The fourth proportional to 3,873,186.16, 5,344,982.64 and 2,154,306.70 is: 2,972,935.31
Step by Step Solution
- Step 1: Write the proportion equation
3,873,186.16 : 5,344,982.64 = 2,154,306.70 : x - Step 2: Convert to fraction form
3,873,186.16/5,344,982.64 = 2,154,306.70/x - Step 3: Cross multiply
3,873,186.16x = 5,344,982.64 × 2,154,306.70 - Step 4: Simplify right side
3,873,186.16x = 11,514,731,912,735.69 - Step 5: Solve for x
x = 11,514,731,912,735.69/3,873,186.16 - Step 6: Final answer
x = 2,972,935.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.