Home / 5,423.19-8,131.91-2,499

Finding the Fourth Proportional to 5,423.19, 8,131.91 and 2,499

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Solution

The fourth proportional to 5,423.19, 8,131.91 and 2,499 is: 3,747.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.19 : 8,131.91 = 2,499 : x
  2. Step 2: Convert to fraction form
    5,423.19/8,131.91 = 2,499/x
  3. Step 3: Cross multiply
    5,423.19x = 8,131.91 × 2,499
  4. Step 4: Simplify right side
    5,423.19x = 20,321,630.60
  5. Step 5: Solve for x
    x = 20,321,630.60/5,423.19
  6. Step 6: Final answer
    x = 3,747.17

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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.