Home / 3,446.27-5,169.37-981.11

Finding the Fourth Proportional to 3,446.27, 5,169.37 and 981.11

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Solution

The fourth proportional to 3,446.27, 5,169.37 and 981.11 is: 1,471.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,446.27 : 5,169.37 = 981.11 : x
  2. Step 2: Convert to fraction form
    3,446.27/5,169.37 = 981.11/x
  3. Step 3: Cross multiply
    3,446.27x = 5,169.37 × 981.11
  4. Step 4: Simplify right side
    3,446.27x = 5,071,732.91
  5. Step 5: Solve for x
    x = 5,071,732.91/3,446.27
  6. Step 6: Final answer
    x = 1,471.66

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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.