Home / 3,445.20-5,167.80-1,983.15

Finding the Fourth Proportional to 3,445.20, 5,167.80 and 1,983.15

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Solution

The fourth proportional to 3,445.20, 5,167.80 and 1,983.15 is: 2,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.20 : 5,167.80 = 1,983.15 : x
  2. Step 2: Convert to fraction form
    3,445.20/5,167.80 = 1,983.15/x
  3. Step 3: Cross multiply
    3,445.20x = 5,167.80 × 1,983.15
  4. Step 4: Simplify right side
    3,445.20x = 10,248,522.57
  5. Step 5: Solve for x
    x = 10,248,522.57/3,445.20
  6. Step 6: Final answer
    x = 2,974.73

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.