Home / 2,929.25-4,042.85-1,687.97

Finding the Fourth Proportional to 2,929.25, 4,042.85 and 1,687.97

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Solution

The fourth proportional to 2,929.25, 4,042.85 and 1,687.97 is: 2,329.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.25 : 4,042.85 = 1,687.97 : x
  2. Step 2: Convert to fraction form
    2,929.25/4,042.85 = 1,687.97/x
  3. Step 3: Cross multiply
    2,929.25x = 4,042.85 × 1,687.97
  4. Step 4: Simplify right side
    2,929.25x = 6,824,201.07
  5. Step 5: Solve for x
    x = 6,824,201.07/2,929.25
  6. Step 6: Final answer
    x = 2,329.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.