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Finding the Fourth Proportional to 2,241.22, 3,361.72 and 681.22

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Solution

The fourth proportional to 2,241.22, 3,361.72 and 681.22 is: 1,021.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,241.22 : 3,361.72 = 681.22 : x
  2. Step 2: Convert to fraction form
    2,241.22/3,361.72 = 681.22/x
  3. Step 3: Cross multiply
    2,241.22x = 3,361.72 × 681.22
  4. Step 4: Simplify right side
    2,241.22x = 2,290,055.25
  5. Step 5: Solve for x
    x = 2,290,055.25/2,241.22
  6. Step 6: Final answer
    x = 1,021.79

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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.