Home / 3,179.22-4,388.49-2,783.94

Finding the Fourth Proportional to 3,179.22, 4,388.49 and 2,783.94

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Solution

The fourth proportional to 3,179.22, 4,388.49 and 2,783.94 is: 3,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.22 : 4,388.49 = 2,783.94 : x
  2. Step 2: Convert to fraction form
    3,179.22/4,388.49 = 2,783.94/x
  3. Step 3: Cross multiply
    3,179.22x = 4,388.49 × 2,783.94
  4. Step 4: Simplify right side
    3,179.22x = 12,217,292.85
  5. Step 5: Solve for x
    x = 12,217,292.85/3,179.22
  6. Step 6: Final answer
    x = 3,842.86

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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.