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Finding the Fourth Proportional to 1,104.57, 1,524.74 and 750.31

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Solution

The fourth proportional to 1,104.57, 1,524.74 and 750.31 is: 1,035.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.57 : 1,524.74 = 750.31 : x
  2. Step 2: Convert to fraction form
    1,104.57/1,524.74 = 750.31/x
  3. Step 3: Cross multiply
    1,104.57x = 1,524.74 × 750.31
  4. Step 4: Simplify right side
    1,104.57x = 1,144,020.11
  5. Step 5: Solve for x
    x = 1,144,020.11/1,104.57
  6. Step 6: Final answer
    x = 1,035.72

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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.