Home / 5,391.11-7,439.40-3,152.88

Finding the Fourth Proportional to 5,391.11, 7,439.40 and 3,152.88

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Solution

The fourth proportional to 5,391.11, 7,439.40 and 3,152.88 is: 4,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.11 : 7,439.40 = 3,152.88 : x
  2. Step 2: Convert to fraction form
    5,391.11/7,439.40 = 3,152.88/x
  3. Step 3: Cross multiply
    5,391.11x = 7,439.40 × 3,152.88
  4. Step 4: Simplify right side
    5,391.11x = 23,455,535.47
  5. Step 5: Solve for x
    x = 23,455,535.47/5,391.11
  6. Step 6: Final answer
    x = 4,350.78

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1.5x scale

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.