Home / 3,721.43-5,135.70-2,042.96

Finding the Fourth Proportional to 3,721.43, 5,135.70 and 2,042.96

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Solution

The fourth proportional to 3,721.43, 5,135.70 and 2,042.96 is: 2,819.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.43 : 5,135.70 = 2,042.96 : x
  2. Step 2: Convert to fraction form
    3,721.43/5,135.70 = 2,042.96/x
  3. Step 3: Cross multiply
    3,721.43x = 5,135.70 × 2,042.96
  4. Step 4: Simplify right side
    3,721.43x = 10,492,003.99
  5. Step 5: Solve for x
    x = 10,492,003.99/3,721.43
  6. Step 6: Final answer
    x = 2,819.35

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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.