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Finding the Fourth Proportional to 2,757.33, 4,135.12 and 908.03

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Solution

The fourth proportional to 2,757.33, 4,135.12 and 908.03 is: 1,361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.33 : 4,135.12 = 908.03 : x
  2. Step 2: Convert to fraction form
    2,757.33/4,135.12 = 908.03/x
  3. Step 3: Cross multiply
    2,757.33x = 4,135.12 × 908.03
  4. Step 4: Simplify right side
    2,757.33x = 3,754,813.01
  5. Step 5: Solve for x
    x = 3,754,813.01/2,757.33
  6. Step 6: Final answer
    x = 1,361.76

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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.