Home / 2,561.52-3,843.28-2,072.50

Finding the Fourth Proportional to 2,561.52, 3,843.28 and 2,072.50

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Solution

The fourth proportional to 2,561.52, 3,843.28 and 2,072.50 is: 3,109.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.52 : 3,843.28 = 2,072.50 : x
  2. Step 2: Convert to fraction form
    2,561.52/3,843.28 = 2,072.50/x
  3. Step 3: Cross multiply
    2,561.52x = 3,843.28 × 2,072.50
  4. Step 4: Simplify right side
    2,561.52x = 7,965,197.80
  5. Step 5: Solve for x
    x = 7,965,197.80/2,561.52
  6. Step 6: Final answer
    x = 3,109.56

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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.