Finding the Fourth Proportional to 3,895,697.36, 5,375,968.52 and 2,129,517.17
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Solution
The fourth proportional to 3,895,697.36, 5,375,968.52 and 2,129,517.17 is: 2,938,682.39
Step by Step Solution
- Step 1: Write the proportion equation
3,895,697.36 : 5,375,968.52 = 2,129,517.17 : x - Step 2: Convert to fraction form
3,895,697.36/5,375,968.52 = 2,129,517.17/x - Step 3: Cross multiply
3,895,697.36x = 5,375,968.52 × 2,129,517.17 - Step 4: Simplify right side
3,895,697.36x = 11,448,217,251,351.94 - Step 5: Solve for x
x = 11,448,217,251,351.94/3,895,697.36 - Step 6: Final answer
x = 2,938,682.39
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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.