Home / 5,519.38-8,280.69-2,230.78

Finding the Fourth Proportional to 5,519.38, 8,280.69 and 2,230.78

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Solution

The fourth proportional to 5,519.38, 8,280.69 and 2,230.78 is: 3,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.38 : 8,280.69 = 2,230.78 : x
  2. Step 2: Convert to fraction form
    5,519.38/8,280.69 = 2,230.78/x
  3. Step 3: Cross multiply
    5,519.38x = 8,280.69 × 2,230.78
  4. Step 4: Simplify right side
    5,519.38x = 18,472,397.64
  5. Step 5: Solve for x
    x = 18,472,397.64/5,519.38
  6. Step 6: Final answer
    x = 3,346.82

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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.