Home / 3,721.91-5,135.91-2,043.31

Finding the Fourth Proportional to 3,721.91, 5,135.91 and 2,043.31

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Solution

The fourth proportional to 3,721.91, 5,135.91 and 2,043.31 is: 2,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.91 : 5,135.91 = 2,043.31 : x
  2. Step 2: Convert to fraction form
    3,721.91/5,135.91 = 2,043.31/x
  3. Step 3: Cross multiply
    3,721.91x = 5,135.91 × 2,043.31
  4. Step 4: Simplify right side
    3,721.91x = 10,494,220.37
  5. Step 5: Solve for x
    x = 10,494,220.37/3,721.91
  6. Step 6: Final answer
    x = 2,819.58

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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.