Home / 2,040.72-3,065.19-1,220.61

Finding the Fourth Proportional to 2,040.72, 3,065.19 and 1,220.61

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Solution

The fourth proportional to 2,040.72, 3,065.19 and 1,220.61 is: 1,833.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.72 : 3,065.19 = 1,220.61 : x
  2. Step 2: Convert to fraction form
    2,040.72/3,065.19 = 1,220.61/x
  3. Step 3: Cross multiply
    2,040.72x = 3,065.19 × 1,220.61
  4. Step 4: Simplify right side
    2,040.72x = 3,741,401.57
  5. Step 5: Solve for x
    x = 3,741,401.57/2,040.72
  6. Step 6: Final answer
    x = 1,833.37

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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.