Home / 3,112.77-4,669.20-1,163.91

Finding the Fourth Proportional to 3,112.77, 4,669.20 and 1,163.91

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Solution

The fourth proportional to 3,112.77, 4,669.20 and 1,163.91 is: 1,745.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.77 : 4,669.20 = 1,163.91 : x
  2. Step 2: Convert to fraction form
    3,112.77/4,669.20 = 1,163.91/x
  3. Step 3: Cross multiply
    3,112.77x = 4,669.20 × 1,163.91
  4. Step 4: Simplify right side
    3,112.77x = 5,434,505.23
  5. Step 5: Solve for x
    x = 5,434,505.23/3,112.77
  6. Step 6: Final answer
    x = 1,745.88

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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.