Home / 5,731.20-7,909.26-3,342.70

Finding the Fourth Proportional to 5,731.20, 7,909.26 and 3,342.70

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Solution

The fourth proportional to 5,731.20, 7,909.26 and 3,342.70 is: 4,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.20 : 7,909.26 = 3,342.70 : x
  2. Step 2: Convert to fraction form
    5,731.20/7,909.26 = 3,342.70/x
  3. Step 3: Cross multiply
    5,731.20x = 7,909.26 × 3,342.70
  4. Step 4: Simplify right side
    5,731.20x = 26,438,251.09
  5. Step 5: Solve for x
    x = 26,438,251.09/5,731.20
  6. Step 6: Final answer
    x = 4,613.04

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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.