Home / 3,380.75-5,046.65-2,921.48

Finding the Fourth Proportional to 3,380.75, 5,046.65 and 2,921.48

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Solution

The fourth proportional to 3,380.75, 5,046.65 and 2,921.48 is: 4,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.75 : 5,046.65 = 2,921.48 : x
  2. Step 2: Convert to fraction form
    3,380.75/5,046.65 = 2,921.48/x
  3. Step 3: Cross multiply
    3,380.75x = 5,046.65 × 2,921.48
  4. Step 4: Simplify right side
    3,380.75x = 14,743,687.04
  5. Step 5: Solve for x
    x = 14,743,687.04/3,380.75
  6. Step 6: Final answer
    x = 4,361.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.