Home / 3,171.29-4,372.25-2,174.85

Finding the Fourth Proportional to 3,171.29, 4,372.25 and 2,174.85

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Solution

The fourth proportional to 3,171.29, 4,372.25 and 2,174.85 is: 2,998.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.29 : 4,372.25 = 2,174.85 : x
  2. Step 2: Convert to fraction form
    3,171.29/4,372.25 = 2,174.85/x
  3. Step 3: Cross multiply
    3,171.29x = 4,372.25 × 2,174.85
  4. Step 4: Simplify right side
    3,171.29x = 9,508,977.04
  5. Step 5: Solve for x
    x = 9,508,977.04/3,171.29
  6. Step 6: Final answer
    x = 2,998.46

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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.