Home / 2,240.29-3,091.62-1,245.61

Finding the Fourth Proportional to 2,240.29, 3,091.62 and 1,245.61

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Solution

The fourth proportional to 2,240.29, 3,091.62 and 1,245.61 is: 1,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.29 : 3,091.62 = 1,245.61 : x
  2. Step 2: Convert to fraction form
    2,240.29/3,091.62 = 1,245.61/x
  3. Step 3: Cross multiply
    2,240.29x = 3,091.62 × 1,245.61
  4. Step 4: Simplify right side
    2,240.29x = 3,850,952.79
  5. Step 5: Solve for x
    x = 3,850,952.79/2,240.29
  6. Step 6: Final answer
    x = 1,718.95

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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.