Home / 3,116.82-4,301.20-1,790.61

Finding the Fourth Proportional to 3,116.82, 4,301.20 and 1,790.61

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Solution

The fourth proportional to 3,116.82, 4,301.20 and 1,790.61 is: 2,471.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.82 : 4,301.20 = 1,790.61 : x
  2. Step 2: Convert to fraction form
    3,116.82/4,301.20 = 1,790.61/x
  3. Step 3: Cross multiply
    3,116.82x = 4,301.20 × 1,790.61
  4. Step 4: Simplify right side
    3,116.82x = 7,701,771.73
  5. Step 5: Solve for x
    x = 7,701,771.73/3,116.82
  6. Step 6: Final answer
    x = 2,471.04

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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.