Home / 1,001.39-1,382.20-581.92

Finding the Fourth Proportional to 1,001.39, 1,382.20 and 581.92

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Solution

The fourth proportional to 1,001.39, 1,382.20 and 581.92 is: 803.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001.39 : 1,382.20 = 581.92 : x
  2. Step 2: Convert to fraction form
    1,001.39/1,382.20 = 581.92/x
  3. Step 3: Cross multiply
    1,001.39x = 1,382.20 × 581.92
  4. Step 4: Simplify right side
    1,001.39x = 804,324.91
  5. Step 5: Solve for x
    x = 804,324.91/1,001.39
  6. Step 6: Final answer
    x = 803.21

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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.