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Finding the Fourth Proportional to 3,937.64, 5,905.96 and 2,472.32

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Solution

The fourth proportional to 3,937.64, 5,905.96 and 2,472.32 is: 3,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.64 : 5,905.96 = 2,472.32 : x
  2. Step 2: Convert to fraction form
    3,937.64/5,905.96 = 2,472.32/x
  3. Step 3: Cross multiply
    3,937.64x = 5,905.96 × 2,472.32
  4. Step 4: Simplify right side
    3,937.64x = 14,601,423.03
  5. Step 5: Solve for x
    x = 14,601,423.03/3,937.64
  6. Step 6: Final answer
    x = 3,708.17

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1.5x scale

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.