Home / 5,379.92-8,067.36-3,188.96

Finding the Fourth Proportional to 5,379.92, 8,067.36 and 3,188.96

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Solution

The fourth proportional to 5,379.92, 8,067.36 and 3,188.96 is: 4,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.92 : 8,067.36 = 3,188.96 : x
  2. Step 2: Convert to fraction form
    5,379.92/8,067.36 = 3,188.96/x
  3. Step 3: Cross multiply
    5,379.92x = 8,067.36 × 3,188.96
  4. Step 4: Simplify right side
    5,379.92x = 25,726,488.35
  5. Step 5: Solve for x
    x = 25,726,488.35/5,379.92
  6. Step 6: Final answer
    x = 4,781.95

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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.