Home / 4,251.78-6,380.15-1,786.41

Finding the Fourth Proportional to 4,251.78, 6,380.15 and 1,786.41

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Solution

The fourth proportional to 4,251.78, 6,380.15 and 1,786.41 is: 2,680.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.78 : 6,380.15 = 1,786.41 : x
  2. Step 2: Convert to fraction form
    4,251.78/6,380.15 = 1,786.41/x
  3. Step 3: Cross multiply
    4,251.78x = 6,380.15 × 1,786.41
  4. Step 4: Simplify right side
    4,251.78x = 11,397,554.83
  5. Step 5: Solve for x
    x = 11,397,554.83/4,251.78
  6. Step 6: Final answer
    x = 2,680.65

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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.