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Finding the Fourth Proportional to 3,753.79, 5,630.31 and 1,671.88

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Solution

The fourth proportional to 3,753.79, 5,630.31 and 1,671.88 is: 2,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.79 : 5,630.31 = 1,671.88 : x
  2. Step 2: Convert to fraction form
    3,753.79/5,630.31 = 1,671.88/x
  3. Step 3: Cross multiply
    3,753.79x = 5,630.31 × 1,671.88
  4. Step 4: Simplify right side
    3,753.79x = 9,413,202.68
  5. Step 5: Solve for x
    x = 9,413,202.68/3,753.79
  6. Step 6: Final answer
    x = 2,507.65

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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.