Home / 1,233.27-1,845.11-1,129.85

Finding the Fourth Proportional to 1,233.27, 1,845.11 and 1,129.85

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Solution

The fourth proportional to 1,233.27, 1,845.11 and 1,129.85 is: 1,690.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.27 : 1,845.11 = 1,129.85 : x
  2. Step 2: Convert to fraction form
    1,233.27/1,845.11 = 1,129.85/x
  3. Step 3: Cross multiply
    1,233.27x = 1,845.11 × 1,129.85
  4. Step 4: Simplify right side
    1,233.27x = 2,084,698.05
  5. Step 5: Solve for x
    x = 2,084,698.05/1,233.27
  6. Step 6: Final answer
    x = 1,690.38

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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.