Home / 3,939.24-5,434.11-3,194.04

Finding the Fourth Proportional to 3,939.24, 5,434.11 and 3,194.04

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Solution

The fourth proportional to 3,939.24, 5,434.11 and 3,194.04 is: 4,406.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.24 : 5,434.11 = 3,194.04 : x
  2. Step 2: Convert to fraction form
    3,939.24/5,434.11 = 3,194.04/x
  3. Step 3: Cross multiply
    3,939.24x = 5,434.11 × 3,194.04
  4. Step 4: Simplify right side
    3,939.24x = 17,356,764.70
  5. Step 5: Solve for x
    x = 17,356,764.70/3,939.24
  6. Step 6: Final answer
    x = 4,406.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.