Home / 2,721.89-4,083.51-1,078.44

Finding the Fourth Proportional to 2,721.89, 4,083.51 and 1,078.44

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Solution

The fourth proportional to 2,721.89, 4,083.51 and 1,078.44 is: 1,617.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.89 : 4,083.51 = 1,078.44 : x
  2. Step 2: Convert to fraction form
    2,721.89/4,083.51 = 1,078.44/x
  3. Step 3: Cross multiply
    2,721.89x = 4,083.51 × 1,078.44
  4. Step 4: Simplify right side
    2,721.89x = 4,403,820.52
  5. Step 5: Solve for x
    x = 4,403,820.52/2,721.89
  6. Step 6: Final answer
    x = 1,617.93

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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.