Home / 3,861.12-5,333.46-2,959.38

Finding the Fourth Proportional to 3,861.12, 5,333.46 and 2,959.38

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Solution

The fourth proportional to 3,861.12, 5,333.46 and 2,959.38 is: 4,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.12 : 5,333.46 = 2,959.38 : x
  2. Step 2: Convert to fraction form
    3,861.12/5,333.46 = 2,959.38/x
  3. Step 3: Cross multiply
    3,861.12x = 5,333.46 × 2,959.38
  4. Step 4: Simplify right side
    3,861.12x = 15,783,734.85
  5. Step 5: Solve for x
    x = 15,783,734.85/3,861.12
  6. Step 6: Final answer
    x = 4,087.86

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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.