Home / 2,772.78-4,160.97-1,212.82

Finding the Fourth Proportional to 2,772.78, 4,160.97 and 1,212.82

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Solution

The fourth proportional to 2,772.78, 4,160.97 and 1,212.82 is: 1,820.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.78 : 4,160.97 = 1,212.82 : x
  2. Step 2: Convert to fraction form
    2,772.78/4,160.97 = 1,212.82/x
  3. Step 3: Cross multiply
    2,772.78x = 4,160.97 × 1,212.82
  4. Step 4: Simplify right side
    2,772.78x = 5,046,520.64
  5. Step 5: Solve for x
    x = 5,046,520.64/2,772.78
  6. Step 6: Final answer
    x = 1,820.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.