Home / 3,080.38-4,251.58-1,961.10

Finding the Fourth Proportional to 3,080.38, 4,251.58 and 1,961.10

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Solution

The fourth proportional to 3,080.38, 4,251.58 and 1,961.10 is: 2,706.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.38 : 4,251.58 = 1,961.10 : x
  2. Step 2: Convert to fraction form
    3,080.38/4,251.58 = 1,961.10/x
  3. Step 3: Cross multiply
    3,080.38x = 4,251.58 × 1,961.10
  4. Step 4: Simplify right side
    3,080.38x = 8,337,773.54
  5. Step 5: Solve for x
    x = 8,337,773.54/3,080.38
  6. Step 6: Final answer
    x = 2,706.74

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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.