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Finding the Fourth Proportional to 3,934.88, 5,903.12 and 1,626.38

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Solution

The fourth proportional to 3,934.88, 5,903.12 and 1,626.38 is: 2,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.88 : 5,903.12 = 1,626.38 : x
  2. Step 2: Convert to fraction form
    3,934.88/5,903.12 = 1,626.38/x
  3. Step 3: Cross multiply
    3,934.88x = 5,903.12 × 1,626.38
  4. Step 4: Simplify right side
    3,934.88x = 9,600,716.31
  5. Step 5: Solve for x
    x = 9,600,716.31/3,934.88
  6. Step 6: Final answer
    x = 2,439.90

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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.