Home / 2,112.49-3,163.26-1,456.39

Finding the Fourth Proportional to 2,112.49, 3,163.26 and 1,456.39

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Solution

The fourth proportional to 2,112.49, 3,163.26 and 1,456.39 is: 2,180.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.49 : 3,163.26 = 1,456.39 : x
  2. Step 2: Convert to fraction form
    2,112.49/3,163.26 = 1,456.39/x
  3. Step 3: Cross multiply
    2,112.49x = 3,163.26 × 1,456.39
  4. Step 4: Simplify right side
    2,112.49x = 4,606,949.65
  5. Step 5: Solve for x
    x = 4,606,949.65/2,112.49
  6. Step 6: Final answer
    x = 2,180.81

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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.