Home / 2,799.13-3,862.97-1,620.61

Finding the Fourth Proportional to 2,799.13, 3,862.97 and 1,620.61

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Solution

The fourth proportional to 2,799.13, 3,862.97 and 1,620.61 is: 2,236.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.13 : 3,862.97 = 1,620.61 : x
  2. Step 2: Convert to fraction form
    2,799.13/3,862.97 = 1,620.61/x
  3. Step 3: Cross multiply
    2,799.13x = 3,862.97 × 1,620.61
  4. Step 4: Simplify right side
    2,799.13x = 6,260,367.81
  5. Step 5: Solve for x
    x = 6,260,367.81/2,799.13
  6. Step 6: Final answer
    x = 2,236.54

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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.