Home / 2,640.50-3,961.19-1,179.59

Finding the Fourth Proportional to 2,640.50, 3,961.19 and 1,179.59

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Solution

The fourth proportional to 2,640.50, 3,961.19 and 1,179.59 is: 1,769.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.50 : 3,961.19 = 1,179.59 : x
  2. Step 2: Convert to fraction form
    2,640.50/3,961.19 = 1,179.59/x
  3. Step 3: Cross multiply
    2,640.50x = 3,961.19 × 1,179.59
  4. Step 4: Simplify right side
    2,640.50x = 4,672,584.12
  5. Step 5: Solve for x
    x = 4,672,584.12/2,640.50
  6. Step 6: Final answer
    x = 1,769.59

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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.