Home / 2,769.44-3,819.84-1,930.44

Finding the Fourth Proportional to 2,769.44, 3,819.84 and 1,930.44

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Solution

The fourth proportional to 2,769.44, 3,819.84 and 1,930.44 is: 2,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.44 : 3,819.84 = 1,930.44 : x
  2. Step 2: Convert to fraction form
    2,769.44/3,819.84 = 1,930.44/x
  3. Step 3: Cross multiply
    2,769.44x = 3,819.84 × 1,930.44
  4. Step 4: Simplify right side
    2,769.44x = 7,373,971.93
  5. Step 5: Solve for x
    x = 7,373,971.93/2,769.44
  6. Step 6: Final answer
    x = 2,662.62

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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.