Home / 3,932.12-5,426.12-2,163.66

Finding the Fourth Proportional to 3,932.12, 5,426.12 and 2,163.66

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Solution

The fourth proportional to 3,932.12, 5,426.12 and 2,163.66 is: 2,985.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.12 : 5,426.12 = 2,163.66 : x
  2. Step 2: Convert to fraction form
    3,932.12/5,426.12 = 2,163.66/x
  3. Step 3: Cross multiply
    3,932.12x = 5,426.12 × 2,163.66
  4. Step 4: Simplify right side
    3,932.12x = 11,740,278.80
  5. Step 5: Solve for x
    x = 11,740,278.80/3,932.12
  6. Step 6: Final answer
    x = 2,985.74

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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.