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Finding the Fourth Proportional to 1,148.52, 1,725.12 and 759.12

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Solution

The fourth proportional to 1,148.52, 1,725.12 and 759.12 is: 1,140.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.52 : 1,725.12 = 759.12 : x
  2. Step 2: Convert to fraction form
    1,148.52/1,725.12 = 759.12/x
  3. Step 3: Cross multiply
    1,148.52x = 1,725.12 × 759.12
  4. Step 4: Simplify right side
    1,148.52x = 1,309,573.09
  5. Step 5: Solve for x
    x = 1,309,573.09/1,148.52
  6. Step 6: Final answer
    x = 1,140.23

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