Home / 3,936.48-5,432.16-2,167.76

Finding the Fourth Proportional to 3,936.48, 5,432.16 and 2,167.76

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Solution

The fourth proportional to 3,936.48, 5,432.16 and 2,167.76 is: 2,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.48 : 5,432.16 = 2,167.76 : x
  2. Step 2: Convert to fraction form
    3,936.48/5,432.16 = 2,167.76/x
  3. Step 3: Cross multiply
    3,936.48x = 5,432.16 × 2,167.76
  4. Step 4: Simplify right side
    3,936.48x = 11,775,619.16
  5. Step 5: Solve for x
    x = 11,775,619.16/3,936.48
  6. Step 6: Final answer
    x = 2,991.41

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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.