Home / 5,418.38-8,123.91-2,495.09

Finding the Fourth Proportional to 5,418.38, 8,123.91 and 2,495.09

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Solution

The fourth proportional to 5,418.38, 8,123.91 and 2,495.09 is: 3,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.38 : 8,123.91 = 2,495.09 : x
  2. Step 2: Convert to fraction form
    5,418.38/8,123.91 = 2,495.09/x
  3. Step 3: Cross multiply
    5,418.38x = 8,123.91 × 2,495.09
  4. Step 4: Simplify right side
    5,418.38x = 20,269,845.98
  5. Step 5: Solve for x
    x = 20,269,845.98/5,418.38
  6. Step 6: Final answer
    x = 3,740.95

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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.