Home / 2,169.73-3,254.91-1,245.13

Finding the Fourth Proportional to 2,169.73, 3,254.91 and 1,245.13

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Solution

The fourth proportional to 2,169.73, 3,254.91 and 1,245.13 is: 1,867.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.73 : 3,254.91 = 1,245.13 : x
  2. Step 2: Convert to fraction form
    2,169.73/3,254.91 = 1,245.13/x
  3. Step 3: Cross multiply
    2,169.73x = 3,254.91 × 1,245.13
  4. Step 4: Simplify right side
    2,169.73x = 4,052,786.09
  5. Step 5: Solve for x
    x = 4,052,786.09/2,169.73
  6. Step 6: Final answer
    x = 1,867.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.