Home / 3,167.60-4,371.15-1,841.20

Finding the Fourth Proportional to 3,167.60, 4,371.15 and 1,841.20

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Solution

The fourth proportional to 3,167.60, 4,371.15 and 1,841.20 is: 2,540.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.60 : 4,371.15 = 1,841.20 : x
  2. Step 2: Convert to fraction form
    3,167.60/4,371.15 = 1,841.20/x
  3. Step 3: Cross multiply
    3,167.60x = 4,371.15 × 1,841.20
  4. Step 4: Simplify right side
    3,167.60x = 8,048,143.55
  5. Step 5: Solve for x
    x = 8,048,143.55/3,167.60
  6. Step 6: Final answer
    x = 2,540.77

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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.