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Finding the Fourth Proportional to 5,361.72, 7,398.18 and 3,449.22

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Solution

The fourth proportional to 5,361.72, 7,398.18 and 3,449.22 is: 4,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361.72 : 7,398.18 = 3,449.22 : x
  2. Step 2: Convert to fraction form
    5,361.72/7,398.18 = 3,449.22/x
  3. Step 3: Cross multiply
    5,361.72x = 7,398.18 × 3,449.22
  4. Step 4: Simplify right side
    5,361.72x = 25,517,950.42
  5. Step 5: Solve for x
    x = 25,517,950.42/5,361.72
  6. Step 6: Final answer
    x = 4,759.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.