Home / 4,991.78-7,481.46-2,067.14

Finding the Fourth Proportional to 4,991.78, 7,481.46 and 2,067.14

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Solution

The fourth proportional to 4,991.78, 7,481.46 and 2,067.14 is: 3,098.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.78 : 7,481.46 = 2,067.14 : x
  2. Step 2: Convert to fraction form
    4,991.78/7,481.46 = 2,067.14/x
  3. Step 3: Cross multiply
    4,991.78x = 7,481.46 × 2,067.14
  4. Step 4: Simplify right side
    4,991.78x = 15,465,225.22
  5. Step 5: Solve for x
    x = 15,465,225.22/4,991.78
  6. Step 6: Final answer
    x = 3,098.14

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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.