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Finding the Fourth Proportional to 1,234.52, 1,704.79 and 793.18

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Solution

The fourth proportional to 1,234.52, 1,704.79 and 793.18 is: 1,095.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.52 : 1,704.79 = 793.18 : x
  2. Step 2: Convert to fraction form
    1,234.52/1,704.79 = 793.18/x
  3. Step 3: Cross multiply
    1,234.52x = 1,704.79 × 793.18
  4. Step 4: Simplify right side
    1,234.52x = 1,352,205.33
  5. Step 5: Solve for x
    x = 1,352,205.33/1,234.52
  6. Step 6: Final answer
    x = 1,095.33

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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.