Home / 5,682.12-8,517.20-2,169.87

Finding the Fourth Proportional to 5,682.12, 8,517.20 and 2,169.87

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Solution

The fourth proportional to 5,682.12, 8,517.20 and 2,169.87 is: 3,252.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,682.12 : 8,517.20 = 2,169.87 : x
  2. Step 2: Convert to fraction form
    5,682.12/8,517.20 = 2,169.87/x
  3. Step 3: Cross multiply
    5,682.12x = 8,517.20 × 2,169.87
  4. Step 4: Simplify right side
    5,682.12x = 18,481,205.91
  5. Step 5: Solve for x
    x = 18,481,205.91/5,682.12
  6. Step 6: Final answer
    x = 3,252.52

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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.