Home / 3,018.37-4,163.83-2,231.05

Finding the Fourth Proportional to 3,018.37, 4,163.83 and 2,231.05

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Solution

The fourth proportional to 3,018.37, 4,163.83 and 2,231.05 is: 3,077.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.37 : 4,163.83 = 2,231.05 : x
  2. Step 2: Convert to fraction form
    3,018.37/4,163.83 = 2,231.05/x
  3. Step 3: Cross multiply
    3,018.37x = 4,163.83 × 2,231.05
  4. Step 4: Simplify right side
    3,018.37x = 9,289,712.92
  5. Step 5: Solve for x
    x = 9,289,712.92/3,018.37
  6. Step 6: Final answer
    x = 3,077.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.