Home / 2,806.62-3,873.14-1,627.78

Finding the Fourth Proportional to 2,806.62, 3,873.14 and 1,627.78

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Solution

The fourth proportional to 2,806.62, 3,873.14 and 1,627.78 is: 2,246.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.62 : 3,873.14 = 1,627.78 : x
  2. Step 2: Convert to fraction form
    2,806.62/3,873.14 = 1,627.78/x
  3. Step 3: Cross multiply
    2,806.62x = 3,873.14 × 1,627.78
  4. Step 4: Simplify right side
    2,806.62x = 6,304,619.83
  5. Step 5: Solve for x
    x = 6,304,619.83/2,806.62
  6. Step 6: Final answer
    x = 2,246.34

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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.