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Finding the Fourth Proportional to 1,202.23, 1,658.23 and 759.43

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Solution

The fourth proportional to 1,202.23, 1,658.23 and 759.43 is: 1,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202.23 : 1,658.23 = 759.43 : x
  2. Step 2: Convert to fraction form
    1,202.23/1,658.23 = 759.43/x
  3. Step 3: Cross multiply
    1,202.23x = 1,658.23 × 759.43
  4. Step 4: Simplify right side
    1,202.23x = 1,259,309.61
  5. Step 5: Solve for x
    x = 1,259,309.61/1,202.23
  6. Step 6: Final answer
    x = 1,047.48

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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.