Home / 2,252.45-3,377.36-865.53

Finding the Fourth Proportional to 2,252.45, 3,377.36 and 865.53

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Solution

The fourth proportional to 2,252.45, 3,377.36 and 865.53 is: 1,297.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.45 : 3,377.36 = 865.53 : x
  2. Step 2: Convert to fraction form
    2,252.45/3,377.36 = 865.53/x
  3. Step 3: Cross multiply
    2,252.45x = 3,377.36 × 865.53
  4. Step 4: Simplify right side
    2,252.45x = 2,923,208.56
  5. Step 5: Solve for x
    x = 2,923,208.56/2,252.45
  6. Step 6: Final answer
    x = 1,297.79

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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.