Home / 3,993.21-5,986.53-2,763

Finding the Fourth Proportional to 3,993.21, 5,986.53 and 2,763

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Solution

The fourth proportional to 3,993.21, 5,986.53 and 2,763 is: 4,142.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.21 : 5,986.53 = 2,763 : x
  2. Step 2: Convert to fraction form
    3,993.21/5,986.53 = 2,763/x
  3. Step 3: Cross multiply
    3,993.21x = 5,986.53 × 2,763
  4. Step 4: Simplify right side
    3,993.21x = 16,540,782.39
  5. Step 5: Solve for x
    x = 16,540,782.39/3,993.21
  6. Step 6: Final answer
    x = 4,142.23

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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.