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Finding the Fourth Proportional to 3,901.55, 5,381.12 and 2,327.99

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Solution

The fourth proportional to 3,901.55, 5,381.12 and 2,327.99 is: 3,210.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.55 : 5,381.12 = 2,327.99 : x
  2. Step 2: Convert to fraction form
    3,901.55/5,381.12 = 2,327.99/x
  3. Step 3: Cross multiply
    3,901.55x = 5,381.12 × 2,327.99
  4. Step 4: Simplify right side
    3,901.55x = 12,527,181.91
  5. Step 5: Solve for x
    x = 12,527,181.91/3,901.55
  6. Step 6: Final answer
    x = 3,210.82

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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.