Home / 3,936.49-5,906.78-1,744.70

Finding the Fourth Proportional to 3,936.49, 5,906.78 and 1,744.70

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Solution

The fourth proportional to 3,936.49, 5,906.78 and 1,744.70 is: 2,617.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.49 : 5,906.78 = 1,744.70 : x
  2. Step 2: Convert to fraction form
    3,936.49/5,906.78 = 1,744.70/x
  3. Step 3: Cross multiply
    3,936.49x = 5,906.78 × 1,744.70
  4. Step 4: Simplify right side
    3,936.49x = 10,305,559.07
  5. Step 5: Solve for x
    x = 10,305,559.07/3,936.49
  6. Step 6: Final answer
    x = 2,617.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.