Home / 3,912.15-5,399.10-2,233.65

Finding the Fourth Proportional to 3,912.15, 5,399.10 and 2,233.65

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Solution

The fourth proportional to 3,912.15, 5,399.10 and 2,233.65 is: 3,082.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.15 : 5,399.10 = 2,233.65 : x
  2. Step 2: Convert to fraction form
    3,912.15/5,399.10 = 2,233.65/x
  3. Step 3: Cross multiply
    3,912.15x = 5,399.10 × 2,233.65
  4. Step 4: Simplify right side
    3,912.15x = 12,059,699.72
  5. Step 5: Solve for x
    x = 12,059,699.72/3,912.15
  6. Step 6: Final answer
    x = 3,082.63

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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.