Home / 3,912.44-5,399.26-2,144.21

Finding the Fourth Proportional to 3,912.44, 5,399.26 and 2,144.21

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Solution

The fourth proportional to 3,912.44, 5,399.26 and 2,144.21 is: 2,959.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.44 : 5,399.26 = 2,144.21 : x
  2. Step 2: Convert to fraction form
    3,912.44/5,399.26 = 2,144.21/x
  3. Step 3: Cross multiply
    3,912.44x = 5,399.26 × 2,144.21
  4. Step 4: Simplify right side
    3,912.44x = 11,577,114.93
  5. Step 5: Solve for x
    x = 11,577,114.93/3,912.44
  6. Step 6: Final answer
    x = 2,959.06

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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.