Home / 3,936.01-5,431.71-2,167.74

Finding the Fourth Proportional to 3,936.01, 5,431.71 and 2,167.74

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Solution

The fourth proportional to 3,936.01, 5,431.71 and 2,167.74 is: 2,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.01 : 5,431.71 = 2,167.74 : x
  2. Step 2: Convert to fraction form
    3,936.01/5,431.71 = 2,167.74/x
  3. Step 3: Cross multiply
    3,936.01x = 5,431.71 × 2,167.74
  4. Step 4: Simplify right side
    3,936.01x = 11,774,535.04
  5. Step 5: Solve for x
    x = 11,774,535.04/3,936.01
  6. Step 6: Final answer
    x = 2,991.49

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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.