Home / 4,251.30-6,378.21-2,031.79

Finding the Fourth Proportional to 4,251.30, 6,378.21 and 2,031.79

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Solution

The fourth proportional to 4,251.30, 6,378.21 and 2,031.79 is: 3,048.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.30 : 6,378.21 = 2,031.79 : x
  2. Step 2: Convert to fraction form
    4,251.30/6,378.21 = 2,031.79/x
  3. Step 3: Cross multiply
    4,251.30x = 6,378.21 × 2,031.79
  4. Step 4: Simplify right side
    4,251.30x = 12,959,183.30
  5. Step 5: Solve for x
    x = 12,959,183.30/4,251.30
  6. Step 6: Final answer
    x = 3,048.29

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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.