Home / 4,989.22-7,474.24-2,791.29

Finding the Fourth Proportional to 4,989.22, 7,474.24 and 2,791.29

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Solution

The fourth proportional to 4,989.22, 7,474.24 and 2,791.29 is: 4,181.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.22 : 7,474.24 = 2,791.29 : x
  2. Step 2: Convert to fraction form
    4,989.22/7,474.24 = 2,791.29/x
  3. Step 3: Cross multiply
    4,989.22x = 7,474.24 × 2,791.29
  4. Step 4: Simplify right side
    4,989.22x = 20,862,771.37
  5. Step 5: Solve for x
    x = 20,862,771.37/4,989.22
  6. Step 6: Final answer
    x = 4,181.57

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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.