Home / 3,912.57-5,399.14-2,144.14

Finding the Fourth Proportional to 3,912.57, 5,399.14 and 2,144.14

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Solution

The fourth proportional to 3,912.57, 5,399.14 and 2,144.14 is: 2,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.57 : 5,399.14 = 2,144.14 : x
  2. Step 2: Convert to fraction form
    3,912.57/5,399.14 = 2,144.14/x
  3. Step 3: Cross multiply
    3,912.57x = 5,399.14 × 2,144.14
  4. Step 4: Simplify right side
    3,912.57x = 11,576,512.04
  5. Step 5: Solve for x
    x = 11,576,512.04/3,912.57
  6. Step 6: Final answer
    x = 2,958.80

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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.