Home / 3,371.20-5,052.83-1,520.15

Finding the Fourth Proportional to 3,371.20, 5,052.83 and 1,520.15

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Solution

The fourth proportional to 3,371.20, 5,052.83 and 1,520.15 is: 2,278.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,371.20 : 5,052.83 = 1,520.15 : x
  2. Step 2: Convert to fraction form
    3,371.20/5,052.83 = 1,520.15/x
  3. Step 3: Cross multiply
    3,371.20x = 5,052.83 × 1,520.15
  4. Step 4: Simplify right side
    3,371.20x = 7,681,051.31
  5. Step 5: Solve for x
    x = 7,681,051.31/3,371.20
  6. Step 6: Final answer
    x = 2,278.43

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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.