Home / 2,486.69-3,721.92-1,828.39

Finding the Fourth Proportional to 2,486.69, 3,721.92 and 1,828.39

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Solution

The fourth proportional to 2,486.69, 3,721.92 and 1,828.39 is: 2,736.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.69 : 3,721.92 = 1,828.39 : x
  2. Step 2: Convert to fraction form
    2,486.69/3,721.92 = 1,828.39/x
  3. Step 3: Cross multiply
    2,486.69x = 3,721.92 × 1,828.39
  4. Step 4: Simplify right side
    2,486.69x = 6,805,112.17
  5. Step 5: Solve for x
    x = 6,805,112.17/2,486.69
  6. Step 6: Final answer
    x = 2,736.61

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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.