Home / 5,150.20-7,711.45-4,236.78

Finding the Fourth Proportional to 5,150.20, 7,711.45 and 4,236.78

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Solution

The fourth proportional to 5,150.20, 7,711.45 and 4,236.78 is: 6,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.20 : 7,711.45 = 4,236.78 : x
  2. Step 2: Convert to fraction form
    5,150.20/7,711.45 = 4,236.78/x
  3. Step 3: Cross multiply
    5,150.20x = 7,711.45 × 4,236.78
  4. Step 4: Simplify right side
    5,150.20x = 32,671,737.60
  5. Step 5: Solve for x
    x = 32,671,737.60/5,150.20
  6. Step 6: Final answer
    x = 6,343.79

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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.