Home / 1,001.93-1,382.28-1,000.38

Finding the Fourth Proportional to 1,001.93, 1,382.28 and 1,000.38

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Solution

The fourth proportional to 1,001.93, 1,382.28 and 1,000.38 is: 1,380.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001.93 : 1,382.28 = 1,000.38 : x
  2. Step 2: Convert to fraction form
    1,001.93/1,382.28 = 1,000.38/x
  3. Step 3: Cross multiply
    1,001.93x = 1,382.28 × 1,000.38
  4. Step 4: Simplify right side
    1,001.93x = 1,382,805.27
  5. Step 5: Solve for x
    x = 1,382,805.27/1,001.93
  6. Step 6: Final answer
    x = 1,380.15

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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.