Home / 8,791.20-13,175.52-3,590.88

Finding the Fourth Proportional to 8,791.20, 13,175.52 and 3,590.88

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Solution

The fourth proportional to 8,791.20, 13,175.52 and 3,590.88 is: 5,381.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.20 : 13,175.52 = 3,590.88 : x
  2. Step 2: Convert to fraction form
    8,791.20/13,175.52 = 3,590.88/x
  3. Step 3: Cross multiply
    8,791.20x = 13,175.52 × 3,590.88
  4. Step 4: Simplify right side
    8,791.20x = 47,311,711.26
  5. Step 5: Solve for x
    x = 47,311,711.26/8,791.20
  6. Step 6: Final answer
    x = 5,381.71

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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.