Home / 2,799.15-3,865.41-1,806.12

Finding the Fourth Proportional to 2,799.15, 3,865.41 and 1,806.12

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Solution

The fourth proportional to 2,799.15, 3,865.41 and 1,806.12 is: 2,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.15 : 3,865.41 = 1,806.12 : x
  2. Step 2: Convert to fraction form
    2,799.15/3,865.41 = 1,806.12/x
  3. Step 3: Cross multiply
    2,799.15x = 3,865.41 × 1,806.12
  4. Step 4: Simplify right side
    2,799.15x = 6,981,394.31
  5. Step 5: Solve for x
    x = 6,981,394.31/2,799.15
  6. Step 6: Final answer
    x = 2,494.11

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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.