Home / 3,163.71-4,745.56-1,214.55

Finding the Fourth Proportional to 3,163.71, 4,745.56 and 1,214.55

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Solution

The fourth proportional to 3,163.71, 4,745.56 and 1,214.55 is: 1,821.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.71 : 4,745.56 = 1,214.55 : x
  2. Step 2: Convert to fraction form
    3,163.71/4,745.56 = 1,214.55/x
  3. Step 3: Cross multiply
    3,163.71x = 4,745.56 × 1,214.55
  4. Step 4: Simplify right side
    3,163.71x = 5,763,719.90
  5. Step 5: Solve for x
    x = 5,763,719.90/3,163.71
  6. Step 6: Final answer
    x = 1,821.82

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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.