Home / 3,819.87-5,729.91-1,738.80

Finding the Fourth Proportional to 3,819.87, 5,729.91 and 1,738.80

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Solution

The fourth proportional to 3,819.87, 5,729.91 and 1,738.80 is: 2,608.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.87 : 5,729.91 = 1,738.80 : x
  2. Step 2: Convert to fraction form
    3,819.87/5,729.91 = 1,738.80/x
  3. Step 3: Cross multiply
    3,819.87x = 5,729.91 × 1,738.80
  4. Step 4: Simplify right side
    3,819.87x = 9,963,174.03
  5. Step 5: Solve for x
    x = 9,963,174.03/3,819.87
  6. Step 6: Final answer
    x = 2,608.25

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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.