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Finding the Fourth Proportional to 1,367.97, 1,888.29 and 1,073.31

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Solution

The fourth proportional to 1,367.97, 1,888.29 and 1,073.31 is: 1,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.97 : 1,888.29 = 1,073.31 : x
  2. Step 2: Convert to fraction form
    1,367.97/1,888.29 = 1,073.31/x
  3. Step 3: Cross multiply
    1,367.97x = 1,888.29 × 1,073.31
  4. Step 4: Simplify right side
    1,367.97x = 2,026,720.54
  5. Step 5: Solve for x
    x = 2,026,720.54/1,367.97
  6. Step 6: Final answer
    x = 1,481.55

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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.