Home / 3,458.28-5,188.20-1,149.78

Finding the Fourth Proportional to 3,458.28, 5,188.20 and 1,149.78

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Solution

The fourth proportional to 3,458.28, 5,188.20 and 1,149.78 is: 1,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.28 : 5,188.20 = 1,149.78 : x
  2. Step 2: Convert to fraction form
    3,458.28/5,188.20 = 1,149.78/x
  3. Step 3: Cross multiply
    3,458.28x = 5,188.20 × 1,149.78
  4. Step 4: Simplify right side
    3,458.28x = 5,965,288.60
  5. Step 5: Solve for x
    x = 5,965,288.60/3,458.28
  6. Step 6: Final answer
    x = 1,724.93

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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.