Home / 3,361.79-5,042.68-1,388.53

Finding the Fourth Proportional to 3,361.79, 5,042.68 and 1,388.53

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Solution

The fourth proportional to 3,361.79, 5,042.68 and 1,388.53 is: 2,082.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.79 : 5,042.68 = 1,388.53 : x
  2. Step 2: Convert to fraction form
    3,361.79/5,042.68 = 1,388.53/x
  3. Step 3: Cross multiply
    3,361.79x = 5,042.68 × 1,388.53
  4. Step 4: Simplify right side
    3,361.79x = 7,001,912.46
  5. Step 5: Solve for x
    x = 7,001,912.46/3,361.79
  6. Step 6: Final answer
    x = 2,082.79

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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.