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Finding the Fourth Proportional to 1,443.24, 2,167.46 and 750.38

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Solution

The fourth proportional to 1,443.24, 2,167.46 and 750.38 is: 1,126.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443.24 : 2,167.46 = 750.38 : x
  2. Step 2: Convert to fraction form
    1,443.24/2,167.46 = 750.38/x
  3. Step 3: Cross multiply
    1,443.24x = 2,167.46 × 750.38
  4. Step 4: Simplify right side
    1,443.24x = 1,626,418.63
  5. Step 5: Solve for x
    x = 1,626,418.63/1,443.24
  6. Step 6: Final answer
    x = 1,126.92

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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.