Home / 3,469.20-5,200.88-1,519.92

Finding the Fourth Proportional to 3,469.20, 5,200.88 and 1,519.92

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Solution

The fourth proportional to 3,469.20, 5,200.88 and 1,519.92 is: 2,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.20 : 5,200.88 = 1,519.92 : x
  2. Step 2: Convert to fraction form
    3,469.20/5,200.88 = 1,519.92/x
  3. Step 3: Cross multiply
    3,469.20x = 5,200.88 × 1,519.92
  4. Step 4: Simplify right side
    3,469.20x = 7,904,921.53
  5. Step 5: Solve for x
    x = 7,904,921.53/3,469.20
  6. Step 6: Final answer
    x = 2,278.60

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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.