Home / 6,945.12-9,581.22-4,149

Finding the Fourth Proportional to 6,945.12, 9,581.22 and 4,149

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Solution

The fourth proportional to 6,945.12, 9,581.22 and 4,149 is: 5,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945.12 : 9,581.22 = 4,149 : x
  2. Step 2: Convert to fraction form
    6,945.12/9,581.22 = 4,149/x
  3. Step 3: Cross multiply
    6,945.12x = 9,581.22 × 4,149
  4. Step 4: Simplify right side
    6,945.12x = 39,752,481.78
  5. Step 5: Solve for x
    x = 39,752,481.78/6,945.12
  6. Step 6: Final answer
    x = 5,723.80

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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.