Home / 3,167.50-4,371.85-2,107.10

Finding the Fourth Proportional to 3,167.50, 4,371.85 and 2,107.10

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Solution

The fourth proportional to 3,167.50, 4,371.85 and 2,107.10 is: 2,908.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.50 : 4,371.85 = 2,107.10 : x
  2. Step 2: Convert to fraction form
    3,167.50/4,371.85 = 2,107.10/x
  3. Step 3: Cross multiply
    3,167.50x = 4,371.85 × 2,107.10
  4. Step 4: Simplify right side
    3,167.50x = 9,211,930.80
  5. Step 5: Solve for x
    x = 9,211,930.80/3,167.50
  6. Step 6: Final answer
    x = 2,908.27

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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.