Home / 2,769.20-3,819.80-2,022.26

Finding the Fourth Proportional to 2,769.20, 3,819.80 and 2,022.26

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Solution

The fourth proportional to 2,769.20, 3,819.80 and 2,022.26 is: 2,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.20 : 3,819.80 = 2,022.26 : x
  2. Step 2: Convert to fraction form
    2,769.20/3,819.80 = 2,022.26/x
  3. Step 3: Cross multiply
    2,769.20x = 3,819.80 × 2,022.26
  4. Step 4: Simplify right side
    2,769.20x = 7,724,628.75
  5. Step 5: Solve for x
    x = 7,724,628.75/2,769.20
  6. Step 6: Final answer
    x = 2,789.48

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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.