Home / 3,035.80-4,191.78-2,042.20

Finding the Fourth Proportional to 3,035.80, 4,191.78 and 2,042.20

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Solution

The fourth proportional to 3,035.80, 4,191.78 and 2,042.20 is: 2,819.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,035.80 : 4,191.78 = 2,042.20 : x
  2. Step 2: Convert to fraction form
    3,035.80/4,191.78 = 2,042.20/x
  3. Step 3: Cross multiply
    3,035.80x = 4,191.78 × 2,042.20
  4. Step 4: Simplify right side
    3,035.80x = 8,560,453.12
  5. Step 5: Solve for x
    x = 8,560,453.12/3,035.80
  6. Step 6: Final answer
    x = 2,819.83

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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.