Home / 8,590.24-12,885.60-2,747.20

Finding the Fourth Proportional to 8,590.24, 12,885.60 and 2,747.20

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Solution

The fourth proportional to 8,590.24, 12,885.60 and 2,747.20 is: 4,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.24 : 12,885.60 = 2,747.20 : x
  2. Step 2: Convert to fraction form
    8,590.24/12,885.60 = 2,747.20/x
  3. Step 3: Cross multiply
    8,590.24x = 12,885.60 × 2,747.20
  4. Step 4: Simplify right side
    8,590.24x = 35,399,320.32
  5. Step 5: Solve for x
    x = 35,399,320.32/8,590.24
  6. Step 6: Final answer
    x = 4,120.88

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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.