Home / 2,806.82-3,873.99-1,862.66

Finding the Fourth Proportional to 2,806.82, 3,873.99 and 1,862.66

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Solution

The fourth proportional to 2,806.82, 3,873.99 and 1,862.66 is: 2,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.82 : 3,873.99 = 1,862.66 : x
  2. Step 2: Convert to fraction form
    2,806.82/3,873.99 = 1,862.66/x
  3. Step 3: Cross multiply
    2,806.82x = 3,873.99 × 1,862.66
  4. Step 4: Simplify right side
    2,806.82x = 7,215,906.84
  5. Step 5: Solve for x
    x = 7,215,906.84/2,806.82
  6. Step 6: Final answer
    x = 2,570.85

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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.