Home / 1,481.37-2,221.32-865.23

Finding the Fourth Proportional to 1,481.37, 2,221.32 and 865.23

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Solution

The fourth proportional to 1,481.37, 2,221.32 and 865.23 is: 1,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.37 : 2,221.32 = 865.23 : x
  2. Step 2: Convert to fraction form
    1,481.37/2,221.32 = 865.23/x
  3. Step 3: Cross multiply
    1,481.37x = 2,221.32 × 865.23
  4. Step 4: Simplify right side
    1,481.37x = 1,921,952.70
  5. Step 5: Solve for x
    x = 1,921,952.70/1,481.37
  6. Step 6: Final answer
    x = 1,297.42

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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.