Home / 3,167.87-4,371.82-1,909.32

Finding the Fourth Proportional to 3,167.87, 4,371.82 and 1,909.32

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Solution

The fourth proportional to 3,167.87, 4,371.82 and 1,909.32 is: 2,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.87 : 4,371.82 = 1,909.32 : x
  2. Step 2: Convert to fraction form
    3,167.87/4,371.82 = 1,909.32/x
  3. Step 3: Cross multiply
    3,167.87x = 4,371.82 × 1,909.32
  4. Step 4: Simplify right side
    3,167.87x = 8,347,203.36
  5. Step 5: Solve for x
    x = 8,347,203.36/3,167.87
  6. Step 6: Final answer
    x = 2,634.96

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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.