Home / 5,679.61-8,513.68-2,859.83

Finding the Fourth Proportional to 5,679.61, 8,513.68 and 2,859.83

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Solution

The fourth proportional to 5,679.61, 8,513.68 and 2,859.83 is: 4,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.61 : 8,513.68 = 2,859.83 : x
  2. Step 2: Convert to fraction form
    5,679.61/8,513.68 = 2,859.83/x
  3. Step 3: Cross multiply
    5,679.61x = 8,513.68 × 2,859.83
  4. Step 4: Simplify right side
    5,679.61x = 24,347,620.61
  5. Step 5: Solve for x
    x = 24,347,620.61/5,679.61
  6. Step 6: Final answer
    x = 4,286.85

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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.