Home / 1,550.11-2,139.17-841.97

Finding the Fourth Proportional to 1,550.11, 2,139.17 and 841.97

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Solution

The fourth proportional to 1,550.11, 2,139.17 and 841.97 is: 1,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.11 : 2,139.17 = 841.97 : x
  2. Step 2: Convert to fraction form
    1,550.11/2,139.17 = 841.97/x
  3. Step 3: Cross multiply
    1,550.11x = 2,139.17 × 841.97
  4. Step 4: Simplify right side
    1,550.11x = 1,801,108.57
  5. Step 5: Solve for x
    x = 1,801,108.57/1,550.11
  6. Step 6: Final answer
    x = 1,161.92

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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.