Home / 5,219.58-7,821.96-2,749.38

Finding the Fourth Proportional to 5,219.58, 7,821.96 and 2,749.38

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Solution

The fourth proportional to 5,219.58, 7,821.96 and 2,749.38 is: 4,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.58 : 7,821.96 = 2,749.38 : x
  2. Step 2: Convert to fraction form
    5,219.58/7,821.96 = 2,749.38/x
  3. Step 3: Cross multiply
    5,219.58x = 7,821.96 × 2,749.38
  4. Step 4: Simplify right side
    5,219.58x = 21,505,540.38
  5. Step 5: Solve for x
    x = 21,505,540.38/5,219.58
  6. Step 6: Final answer
    x = 4,120.17

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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.