Home / 3,380.28-5,072.85-1,190.85

Finding the Fourth Proportional to 3,380.28, 5,072.85 and 1,190.85

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Solution

The fourth proportional to 3,380.28, 5,072.85 and 1,190.85 is: 1,787.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.28 : 5,072.85 = 1,190.85 : x
  2. Step 2: Convert to fraction form
    3,380.28/5,072.85 = 1,190.85/x
  3. Step 3: Cross multiply
    3,380.28x = 5,072.85 × 1,190.85
  4. Step 4: Simplify right side
    3,380.28x = 6,041,003.42
  5. Step 5: Solve for x
    x = 6,041,003.42/3,380.28
  6. Step 6: Final answer
    x = 1,787.13

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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.