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Finding the Fourth Proportional to 1,001.69, 1,382.34 and 582.18

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Solution

The fourth proportional to 1,001.69, 1,382.34 and 582.18 is: 803.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001.69 : 1,382.34 = 582.18 : x
  2. Step 2: Convert to fraction form
    1,001.69/1,382.34 = 582.18/x
  3. Step 3: Cross multiply
    1,001.69x = 1,382.34 × 582.18
  4. Step 4: Simplify right side
    1,001.69x = 804,770.70
  5. Step 5: Solve for x
    x = 804,770.70/1,001.69
  6. Step 6: Final answer
    x = 803.41

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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.