Home / 3,932.14-5,426.46-2,163.79

Finding the Fourth Proportional to 3,932.14, 5,426.46 and 2,163.79

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Solution

The fourth proportional to 3,932.14, 5,426.46 and 2,163.79 is: 2,986.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.14 : 5,426.46 = 2,163.79 : x
  2. Step 2: Convert to fraction form
    3,932.14/5,426.46 = 2,163.79/x
  3. Step 3: Cross multiply
    3,932.14x = 5,426.46 × 2,163.79
  4. Step 4: Simplify right side
    3,932.14x = 11,741,719.88
  5. Step 5: Solve for x
    x = 11,741,719.88/3,932.14
  6. Step 6: Final answer
    x = 2,986.09

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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.