Home / 2,821.66-3,895.82-1,759.84

Finding the Fourth Proportional to 2,821.66, 3,895.82 and 1,759.84

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Solution

The fourth proportional to 2,821.66, 3,895.82 and 1,759.84 is: 2,429.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.66 : 3,895.82 = 1,759.84 : x
  2. Step 2: Convert to fraction form
    2,821.66/3,895.82 = 1,759.84/x
  3. Step 3: Cross multiply
    2,821.66x = 3,895.82 × 1,759.84
  4. Step 4: Simplify right side
    2,821.66x = 6,856,011.07
  5. Step 5: Solve for x
    x = 6,856,011.07/2,821.66
  6. Step 6: Final answer
    x = 2,429.78

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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.