Home / 5,414.38-8,118.30-2,123.54

Finding the Fourth Proportional to 5,414.38, 8,118.30 and 2,123.54

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Solution

The fourth proportional to 5,414.38, 8,118.30 and 2,123.54 is: 3,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.38 : 8,118.30 = 2,123.54 : x
  2. Step 2: Convert to fraction form
    5,414.38/8,118.30 = 2,123.54/x
  3. Step 3: Cross multiply
    5,414.38x = 8,118.30 × 2,123.54
  4. Step 4: Simplify right side
    5,414.38x = 17,239,534.78
  5. Step 5: Solve for x
    x = 17,239,534.78/5,414.38
  6. Step 6: Final answer
    x = 3,184.03

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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.