Home / 3,220.39-4,819.27-2,786.73

Finding the Fourth Proportional to 3,220.39, 4,819.27 and 2,786.73

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Solution

The fourth proportional to 3,220.39, 4,819.27 and 2,786.73 is: 4,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.39 : 4,819.27 = 2,786.73 : x
  2. Step 2: Convert to fraction form
    3,220.39/4,819.27 = 2,786.73/x
  3. Step 3: Cross multiply
    3,220.39x = 4,819.27 × 2,786.73
  4. Step 4: Simplify right side
    3,220.39x = 13,430,004.29
  5. Step 5: Solve for x
    x = 13,430,004.29/3,220.39
  6. Step 6: Final answer
    x = 4,170.31

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1.5x scale

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.