Home / 2,619.92-3,930.33-1,799.75

Finding the Fourth Proportional to 2,619.92, 3,930.33 and 1,799.75

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Solution

The fourth proportional to 2,619.92, 3,930.33 and 1,799.75 is: 2,699.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.92 : 3,930.33 = 1,799.75 : x
  2. Step 2: Convert to fraction form
    2,619.92/3,930.33 = 1,799.75/x
  3. Step 3: Cross multiply
    2,619.92x = 3,930.33 × 1,799.75
  4. Step 4: Simplify right side
    2,619.92x = 7,073,611.42
  5. Step 5: Solve for x
    x = 7,073,611.42/2,619.92
  6. Step 6: Final answer
    x = 2,699.93

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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.