Home / 3,936.29-5,432.13-2,167.86

Finding the Fourth Proportional to 3,936.29, 5,432.13 and 2,167.86

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Solution

The fourth proportional to 3,936.29, 5,432.13 and 2,167.86 is: 2,991.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.29 : 5,432.13 = 2,167.86 : x
  2. Step 2: Convert to fraction form
    3,936.29/5,432.13 = 2,167.86/x
  3. Step 3: Cross multiply
    3,936.29x = 5,432.13 × 2,167.86
  4. Step 4: Simplify right side
    3,936.29x = 11,776,097.34
  5. Step 5: Solve for x
    x = 11,776,097.34/3,936.29
  6. Step 6: Final answer
    x = 2,991.67

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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.