Home / 3,931.97-5,426.00-2,163.57

Finding the Fourth Proportional to 3,931.97, 5,426.00 and 2,163.57

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Solution

The fourth proportional to 3,931.97, 5,426.00 and 2,163.57 is: 2,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.97 : 5,426.00 = 2,163.57 : x
  2. Step 2: Convert to fraction form
    3,931.97/5,426.00 = 2,163.57/x
  3. Step 3: Cross multiply
    3,931.97x = 5,426.00 × 2,163.57
  4. Step 4: Simplify right side
    3,931.97x = 11,739,520.00
  5. Step 5: Solve for x
    x = 11,739,520.00/3,931.97
  6. Step 6: Final answer
    x = 2,985.66

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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.