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Finding the Fourth Proportional to 4,249.38, 6,375.68 and 1,939.26

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Solution

The fourth proportional to 4,249.38, 6,375.68 and 1,939.26 is: 2,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,249.38 : 6,375.68 = 1,939.26 : x
  2. Step 2: Convert to fraction form
    4,249.38/6,375.68 = 1,939.26/x
  3. Step 3: Cross multiply
    4,249.38x = 6,375.68 × 1,939.26
  4. Step 4: Simplify right side
    4,249.38x = 12,364,101.20
  5. Step 5: Solve for x
    x = 12,364,101.20/4,249.38
  6. Step 6: Final answer
    x = 2,909.62

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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.