Home / 5,217.11-7,815.24-3,135.99

Finding the Fourth Proportional to 5,217.11, 7,815.24 and 3,135.99

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Solution

The fourth proportional to 5,217.11, 7,815.24 and 3,135.99 is: 4,697.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.11 : 7,815.24 = 3,135.99 : x
  2. Step 2: Convert to fraction form
    5,217.11/7,815.24 = 3,135.99/x
  3. Step 3: Cross multiply
    5,217.11x = 7,815.24 × 3,135.99
  4. Step 4: Simplify right side
    5,217.11x = 24,508,514.49
  5. Step 5: Solve for x
    x = 24,508,514.49/5,217.11
  6. Step 6: Final answer
    x = 4,697.72

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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.