Home / 6,121.42-8,447.92-3,432.85

Finding the Fourth Proportional to 6,121.42, 8,447.92 and 3,432.85

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Solution

The fourth proportional to 6,121.42, 8,447.92 and 3,432.85 is: 4,737.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.42 : 8,447.92 = 3,432.85 : x
  2. Step 2: Convert to fraction form
    6,121.42/8,447.92 = 3,432.85/x
  3. Step 3: Cross multiply
    6,121.42x = 8,447.92 × 3,432.85
  4. Step 4: Simplify right side
    6,121.42x = 29,000,412.47
  5. Step 5: Solve for x
    x = 29,000,412.47/6,121.42
  6. Step 6: Final answer
    x = 4,737.53

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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.