Home / 2,620.14-3,935.19-2,250.78

Finding the Fourth Proportional to 2,620.14, 3,935.19 and 2,250.78

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Solution

The fourth proportional to 2,620.14, 3,935.19 and 2,250.78 is: 3,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.14 : 3,935.19 = 2,250.78 : x
  2. Step 2: Convert to fraction form
    2,620.14/3,935.19 = 2,250.78/x
  3. Step 3: Cross multiply
    2,620.14x = 3,935.19 × 2,250.78
  4. Step 4: Simplify right side
    2,620.14x = 8,857,246.95
  5. Step 5: Solve for x
    x = 8,857,246.95/2,620.14
  6. Step 6: Final answer
    x = 3,380.45

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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.