Home / 6,481.11-8,942.55-4,123.71

Finding the Fourth Proportional to 6,481.11, 8,942.55 and 4,123.71

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Solution

The fourth proportional to 6,481.11, 8,942.55 and 4,123.71 is: 5,689.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481.11 : 8,942.55 = 4,123.71 : x
  2. Step 2: Convert to fraction form
    6,481.11/8,942.55 = 4,123.71/x
  3. Step 3: Cross multiply
    6,481.11x = 8,942.55 × 4,123.71
  4. Step 4: Simplify right side
    6,481.11x = 36,876,490.59
  5. Step 5: Solve for x
    x = 36,876,490.59/6,481.11
  6. Step 6: Final answer
    x = 5,689.84

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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.