Home / 2,072.52-3,108.19-822.55

Finding the Fourth Proportional to 2,072.52, 3,108.19 and 822.55

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Solution

The fourth proportional to 2,072.52, 3,108.19 and 822.55 is: 1,233.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.52 : 3,108.19 = 822.55 : x
  2. Step 2: Convert to fraction form
    2,072.52/3,108.19 = 822.55/x
  3. Step 3: Cross multiply
    2,072.52x = 3,108.19 × 822.55
  4. Step 4: Simplify right side
    2,072.52x = 2,556,628.20
  5. Step 5: Solve for x
    x = 2,556,628.20/2,072.52
  6. Step 6: Final answer
    x = 1,233.59

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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.