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Finding the Fourth Proportional to 5,361.72, 8,032.44 and 3,163.92

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Solution

The fourth proportional to 5,361.72, 8,032.44 and 3,163.92 is: 4,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361.72 : 8,032.44 = 3,163.92 : x
  2. Step 2: Convert to fraction form
    5,361.72/8,032.44 = 3,163.92/x
  3. Step 3: Cross multiply
    5,361.72x = 8,032.44 × 3,163.92
  4. Step 4: Simplify right side
    5,361.72x = 25,413,997.56
  5. Step 5: Solve for x
    x = 25,413,997.56/5,361.72
  6. Step 6: Final answer
    x = 4,739.90

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