Home / 5,517.80-7,614.42-3,279.68

Finding the Fourth Proportional to 5,517.80, 7,614.42 and 3,279.68

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Solution

The fourth proportional to 5,517.80, 7,614.42 and 3,279.68 is: 4,525.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.80 : 7,614.42 = 3,279.68 : x
  2. Step 2: Convert to fraction form
    5,517.80/7,614.42 = 3,279.68/x
  3. Step 3: Cross multiply
    5,517.80x = 7,614.42 × 3,279.68
  4. Step 4: Simplify right side
    5,517.80x = 24,972,860.99
  5. Step 5: Solve for x
    x = 24,972,860.99/5,517.80
  6. Step 6: Final answer
    x = 4,525.87

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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.