Home / 5,481.81-8,221.90-2,018.25

Finding the Fourth Proportional to 5,481.81, 8,221.90 and 2,018.25

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Solution

The fourth proportional to 5,481.81, 8,221.90 and 2,018.25 is: 3,027.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.81 : 8,221.90 = 2,018.25 : x
  2. Step 2: Convert to fraction form
    5,481.81/8,221.90 = 2,018.25/x
  3. Step 3: Cross multiply
    5,481.81x = 8,221.90 × 2,018.25
  4. Step 4: Simplify right side
    5,481.81x = 16,593,849.68
  5. Step 5: Solve for x
    x = 16,593,849.68/5,481.81
  6. Step 6: Final answer
    x = 3,027.07

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1.5x scale

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.