Home / 1,179.92-1,765.56-1,151.12

Finding the Fourth Proportional to 1,179.92, 1,765.56 and 1,151.12

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Solution

The fourth proportional to 1,179.92, 1,765.56 and 1,151.12 is: 1,722.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.92 : 1,765.56 = 1,151.12 : x
  2. Step 2: Convert to fraction form
    1,179.92/1,765.56 = 1,151.12/x
  3. Step 3: Cross multiply
    1,179.92x = 1,765.56 × 1,151.12
  4. Step 4: Simplify right side
    1,179.92x = 2,032,371.43
  5. Step 5: Solve for x
    x = 2,032,371.43/1,179.92
  6. Step 6: Final answer
    x = 1,722.47

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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.