Home / 7,591.20-11,381.88-4,079.04

Finding the Fourth Proportional to 7,591.20, 11,381.88 and 4,079.04

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Solution

The fourth proportional to 7,591.20, 11,381.88 and 4,079.04 is: 6,115.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,591.20 : 11,381.88 = 4,079.04 : x
  2. Step 2: Convert to fraction form
    7,591.20/11,381.88 = 4,079.04/x
  3. Step 3: Cross multiply
    7,591.20x = 11,381.88 × 4,079.04
  4. Step 4: Simplify right side
    7,591.20x = 46,427,143.80
  5. Step 5: Solve for x
    x = 46,427,143.80/7,591.20
  6. Step 6: Final answer
    x = 6,115.92

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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.