Home / 3,171.20-4,371.01-2,383.88

Finding the Fourth Proportional to 3,171.20, 4,371.01 and 2,383.88

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Solution

The fourth proportional to 3,171.20, 4,371.01 and 2,383.88 is: 3,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.20 : 4,371.01 = 2,383.88 : x
  2. Step 2: Convert to fraction form
    3,171.20/4,371.01 = 2,383.88/x
  3. Step 3: Cross multiply
    3,171.20x = 4,371.01 × 2,383.88
  4. Step 4: Simplify right side
    3,171.20x = 10,419,963.32
  5. Step 5: Solve for x
    x = 10,419,963.32/3,171.20
  6. Step 6: Final answer
    x = 3,285.81

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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.