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Finding the Fourth Proportional to 3,760.56, 5,640.96 and 1,163.52

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Solution

The fourth proportional to 3,760.56, 5,640.96 and 1,163.52 is: 1,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,760.56 : 5,640.96 = 1,163.52 : x
  2. Step 2: Convert to fraction form
    3,760.56/5,640.96 = 1,163.52/x
  3. Step 3: Cross multiply
    3,760.56x = 5,640.96 × 1,163.52
  4. Step 4: Simplify right side
    3,760.56x = 6,563,369.78
  5. Step 5: Solve for x
    x = 6,563,369.78/3,760.56
  6. Step 6: Final answer
    x = 1,745.32

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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.