Home / 2,769.28-3,821.32-1,634.72

Finding the Fourth Proportional to 2,769.28, 3,821.32 and 1,634.72

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Solution

The fourth proportional to 2,769.28, 3,821.32 and 1,634.72 is: 2,255.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.28 : 3,821.32 = 1,634.72 : x
  2. Step 2: Convert to fraction form
    2,769.28/3,821.32 = 1,634.72/x
  3. Step 3: Cross multiply
    2,769.28x = 3,821.32 × 1,634.72
  4. Step 4: Simplify right side
    2,769.28x = 6,246,788.23
  5. Step 5: Solve for x
    x = 6,246,788.23/2,769.28
  6. Step 6: Final answer
    x = 2,255.74

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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.