Home / 3,101.82-4,278.60-2,440.86

Finding the Fourth Proportional to 3,101.82, 4,278.60 and 2,440.86

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Solution

The fourth proportional to 3,101.82, 4,278.60 and 2,440.86 is: 3,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.82 : 4,278.60 = 2,440.86 : x
  2. Step 2: Convert to fraction form
    3,101.82/4,278.60 = 2,440.86/x
  3. Step 3: Cross multiply
    3,101.82x = 4,278.60 × 2,440.86
  4. Step 4: Simplify right side
    3,101.82x = 10,443,463.60
  5. Step 5: Solve for x
    x = 10,443,463.60/3,101.82
  6. Step 6: Final answer
    x = 3,366.88

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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.