Home / 5,481.72-8,222.56-2,518.20

Finding the Fourth Proportional to 5,481.72, 8,222.56 and 2,518.20

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Solution

The fourth proportional to 5,481.72, 8,222.56 and 2,518.20 is: 3,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.72 : 8,222.56 = 2,518.20 : x
  2. Step 2: Convert to fraction form
    5,481.72/8,222.56 = 2,518.20/x
  3. Step 3: Cross multiply
    5,481.72x = 8,222.56 × 2,518.20
  4. Step 4: Simplify right side
    5,481.72x = 20,706,044.30
  5. Step 5: Solve for x
    x = 20,706,044.30/5,481.72
  6. Step 6: Final answer
    x = 3,777.29

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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.