Home / 2,812.68-3,881.52-1,634.43

Finding the Fourth Proportional to 2,812.68, 3,881.52 and 1,634.43

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Solution

The fourth proportional to 2,812.68, 3,881.52 and 1,634.43 is: 2,255.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.68 : 3,881.52 = 1,634.43 : x
  2. Step 2: Convert to fraction form
    2,812.68/3,881.52 = 1,634.43/x
  3. Step 3: Cross multiply
    2,812.68x = 3,881.52 × 1,634.43
  4. Step 4: Simplify right side
    2,812.68x = 6,344,072.73
  5. Step 5: Solve for x
    x = 6,344,072.73/2,812.68
  6. Step 6: Final answer
    x = 2,255.53

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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.