Home / 7,432.24-11,138.40-2,747.92

Finding the Fourth Proportional to 7,432.24, 11,138.40 and 2,747.92

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Solution

The fourth proportional to 7,432.24, 11,138.40 and 2,747.92 is: 4,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,432.24 : 11,138.40 = 2,747.92 : x
  2. Step 2: Convert to fraction form
    7,432.24/11,138.40 = 2,747.92/x
  3. Step 3: Cross multiply
    7,432.24x = 11,138.40 × 2,747.92
  4. Step 4: Simplify right side
    7,432.24x = 30,607,432.13
  5. Step 5: Solve for x
    x = 30,607,432.13/7,432.24
  6. Step 6: Final answer
    x = 4,118.20

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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.