Home / 3,819.30-5,729.62-1,969.91

Finding the Fourth Proportional to 3,819.30, 5,729.62 and 1,969.91

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Solution

The fourth proportional to 3,819.30, 5,729.62 and 1,969.91 is: 2,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.30 : 5,729.62 = 1,969.91 : x
  2. Step 2: Convert to fraction form
    3,819.30/5,729.62 = 1,969.91/x
  3. Step 3: Cross multiply
    3,819.30x = 5,729.62 × 1,969.91
  4. Step 4: Simplify right side
    3,819.30x = 11,286,835.73
  5. Step 5: Solve for x
    x = 11,286,835.73/3,819.30
  6. Step 6: Final answer
    x = 2,955.21

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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.