Home / 3,163.80-4,749.60-1,993.80

Finding the Fourth Proportional to 3,163.80, 4,749.60 and 1,993.80

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Solution

The fourth proportional to 3,163.80, 4,749.60 and 1,993.80 is: 2,993.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.80 : 4,749.60 = 1,993.80 : x
  2. Step 2: Convert to fraction form
    3,163.80/4,749.60 = 1,993.80/x
  3. Step 3: Cross multiply
    3,163.80x = 4,749.60 × 1,993.80
  4. Step 4: Simplify right side
    3,163.80x = 9,469,752.48
  5. Step 5: Solve for x
    x = 9,469,752.48/3,163.80
  6. Step 6: Final answer
    x = 2,993.16

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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.