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Finding the Fourth Proportional to 3,937.52, 5,906.88 and 1,340.25

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Solution

The fourth proportional to 3,937.52, 5,906.88 and 1,340.25 is: 2,010.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.52 : 5,906.88 = 1,340.25 : x
  2. Step 2: Convert to fraction form
    3,937.52/5,906.88 = 1,340.25/x
  3. Step 3: Cross multiply
    3,937.52x = 5,906.88 × 1,340.25
  4. Step 4: Simplify right side
    3,937.52x = 7,916,695.92
  5. Step 5: Solve for x
    x = 7,916,695.92/3,937.52
  6. Step 6: Final answer
    x = 2,010.58

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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.