Home / 3,167.75-4,372.19-2,107.35

Finding the Fourth Proportional to 3,167.75, 4,372.19 and 2,107.35

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Solution

The fourth proportional to 3,167.75, 4,372.19 and 2,107.35 is: 2,908.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.75 : 4,372.19 = 2,107.35 : x
  2. Step 2: Convert to fraction form
    3,167.75/4,372.19 = 2,107.35/x
  3. Step 3: Cross multiply
    3,167.75x = 4,372.19 × 2,107.35
  4. Step 4: Simplify right side
    3,167.75x = 9,213,734.60
  5. Step 5: Solve for x
    x = 9,213,734.60/3,167.75
  6. Step 6: Final answer
    x = 2,908.61

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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.