Home / 3,936.16-5,432.04-2,167.72

Finding the Fourth Proportional to 3,936.16, 5,432.04 and 2,167.72

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Solution

The fourth proportional to 3,936.16, 5,432.04 and 2,167.72 is: 2,991.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.16 : 5,432.04 = 2,167.72 : x
  2. Step 2: Convert to fraction form
    3,936.16/5,432.04 = 2,167.72/x
  3. Step 3: Cross multiply
    3,936.16x = 5,432.04 × 2,167.72
  4. Step 4: Simplify right side
    3,936.16x = 11,775,141.75
  5. Step 5: Solve for x
    x = 11,775,141.75/3,936.16
  6. Step 6: Final answer
    x = 2,991.53

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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.