Home / 3,132.82-4,313.42-2,659.78

Finding the Fourth Proportional to 3,132.82, 4,313.42 and 2,659.78

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Solution

The fourth proportional to 3,132.82, 4,313.42 and 2,659.78 is: 3,662.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.82 : 4,313.42 = 2,659.78 : x
  2. Step 2: Convert to fraction form
    3,132.82/4,313.42 = 2,659.78/x
  3. Step 3: Cross multiply
    3,132.82x = 4,313.42 × 2,659.78
  4. Step 4: Simplify right side
    3,132.82x = 11,472,726.68
  5. Step 5: Solve for x
    x = 11,472,726.68/3,132.82
  6. Step 6: Final answer
    x = 3,662.11

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1.5x scale

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.