Home / 2,278.70-3,418.24-635.25

Finding the Fourth Proportional to 2,278.70, 3,418.24 and 635.25

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Solution

The fourth proportional to 2,278.70, 3,418.24 and 635.25 is: 952.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.70 : 3,418.24 = 635.25 : x
  2. Step 2: Convert to fraction form
    2,278.70/3,418.24 = 635.25/x
  3. Step 3: Cross multiply
    2,278.70x = 3,418.24 × 635.25
  4. Step 4: Simplify right side
    2,278.70x = 2,171,435.68
  5. Step 5: Solve for x
    x = 2,171,435.68/2,278.70
  6. Step 6: Final answer
    x = 952.93

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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.