Home / 3,179.97-4,385.79-2,826.18

Finding the Fourth Proportional to 3,179.97, 4,385.79 and 2,826.18

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Solution

The fourth proportional to 3,179.97, 4,385.79 and 2,826.18 is: 3,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.97 : 4,385.79 = 2,826.18 : x
  2. Step 2: Convert to fraction form
    3,179.97/4,385.79 = 2,826.18/x
  3. Step 3: Cross multiply
    3,179.97x = 4,385.79 × 2,826.18
  4. Step 4: Simplify right side
    3,179.97x = 12,395,031.98
  5. Step 5: Solve for x
    x = 12,395,031.98/3,179.97
  6. Step 6: Final answer
    x = 3,897.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.