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Finding the Fourth Proportional to 5,939.68, 8,198.72 and 3,951.52

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Solution

The fourth proportional to 5,939.68, 8,198.72 and 3,951.52 is: 5,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,939.68 : 8,198.72 = 3,951.52 : x
  2. Step 2: Convert to fraction form
    5,939.68/8,198.72 = 3,951.52/x
  3. Step 3: Cross multiply
    5,939.68x = 8,198.72 × 3,951.52
  4. Step 4: Simplify right side
    5,939.68x = 32,397,406.05
  5. Step 5: Solve for x
    x = 32,397,406.05/5,939.68
  6. Step 6: Final answer
    x = 5,454.40

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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.