Home / 2,769.41-3,821.68-1,649.69

Finding the Fourth Proportional to 2,769.41, 3,821.68 and 1,649.69

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Solution

The fourth proportional to 2,769.41, 3,821.68 and 1,649.69 is: 2,276.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.41 : 3,821.68 = 1,649.69 : x
  2. Step 2: Convert to fraction form
    2,769.41/3,821.68 = 1,649.69/x
  3. Step 3: Cross multiply
    2,769.41x = 3,821.68 × 1,649.69
  4. Step 4: Simplify right side
    2,769.41x = 6,304,587.28
  5. Step 5: Solve for x
    x = 6,304,587.28/2,769.41
  6. Step 6: Final answer
    x = 2,276.51

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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.