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Finding the Fourth Proportional to 1,233.34, 1,850.43 and 758.95

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Solution

The fourth proportional to 1,233.34, 1,850.43 and 758.95 is: 1,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.34 : 1,850.43 = 758.95 : x
  2. Step 2: Convert to fraction form
    1,233.34/1,850.43 = 758.95/x
  3. Step 3: Cross multiply
    1,233.34x = 1,850.43 × 758.95
  4. Step 4: Simplify right side
    1,233.34x = 1,404,383.85
  5. Step 5: Solve for x
    x = 1,404,383.85/1,233.34
  6. Step 6: Final answer
    x = 1,138.68

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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.