Home / 3,936.80-5,905.24-1,163.52

Finding the Fourth Proportional to 3,936.80, 5,905.24 and 1,163.52

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Solution

The fourth proportional to 3,936.80, 5,905.24 and 1,163.52 is: 1,745.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.80 : 5,905.24 = 1,163.52 : x
  2. Step 2: Convert to fraction form
    3,936.80/5,905.24 = 1,163.52/x
  3. Step 3: Cross multiply
    3,936.80x = 5,905.24 × 1,163.52
  4. Step 4: Simplify right side
    3,936.80x = 6,870,864.84
  5. Step 5: Solve for x
    x = 6,870,864.84/3,936.80
  6. Step 6: Final answer
    x = 1,745.29

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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.