Home / 3,391.54-4,674.92-2,861.19

Finding the Fourth Proportional to 3,391.54, 4,674.92 and 2,861.19

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Solution

The fourth proportional to 3,391.54, 4,674.92 and 2,861.19 is: 3,943.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.54 : 4,674.92 = 2,861.19 : x
  2. Step 2: Convert to fraction form
    3,391.54/4,674.92 = 2,861.19/x
  3. Step 3: Cross multiply
    3,391.54x = 4,674.92 × 2,861.19
  4. Step 4: Simplify right side
    3,391.54x = 13,375,820.05
  5. Step 5: Solve for x
    x = 13,375,820.05/3,391.54
  6. Step 6: Final answer
    x = 3,943.88

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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.