Home / 5,517.68-7,613.76-3,159.68

Finding the Fourth Proportional to 5,517.68, 7,613.76 and 3,159.68

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Solution

The fourth proportional to 5,517.68, 7,613.76 and 3,159.68 is: 4,359.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.68 : 7,613.76 = 3,159.68 : x
  2. Step 2: Convert to fraction form
    5,517.68/7,613.76 = 3,159.68/x
  3. Step 3: Cross multiply
    5,517.68x = 7,613.76 × 3,159.68
  4. Step 4: Simplify right side
    5,517.68x = 24,057,045.20
  5. Step 5: Solve for x
    x = 24,057,045.20/5,517.68
  6. Step 6: Final answer
    x = 4,359.99

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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.