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Finding the Fourth Proportional to 3,240.82, 4,861.71 and 932.02

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Solution

The fourth proportional to 3,240.82, 4,861.71 and 932.02 is: 1,398.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.82 : 4,861.71 = 932.02 : x
  2. Step 2: Convert to fraction form
    3,240.82/4,861.71 = 932.02/x
  3. Step 3: Cross multiply
    3,240.82x = 4,861.71 × 932.02
  4. Step 4: Simplify right side
    3,240.82x = 4,531,210.95
  5. Step 5: Solve for x
    x = 4,531,210.95/3,240.82
  6. Step 6: Final answer
    x = 1,398.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.