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Finding the Fourth Proportional to 1,348.31, 2,022.48 and 482.69

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Solution

The fourth proportional to 1,348.31, 2,022.48 and 482.69 is: 724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.31 : 2,022.48 = 482.69 : x
  2. Step 2: Convert to fraction form
    1,348.31/2,022.48 = 482.69/x
  3. Step 3: Cross multiply
    1,348.31x = 2,022.48 × 482.69
  4. Step 4: Simplify right side
    1,348.31x = 976,230.87
  5. Step 5: Solve for x
    x = 976,230.87/1,348.31
  6. Step 6: Final answer
    x = 724.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.