Home / 5,498.30-8,245.11-2,120.54

Finding the Fourth Proportional to 5,498.30, 8,245.11 and 2,120.54

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Solution

The fourth proportional to 5,498.30, 8,245.11 and 2,120.54 is: 3,179.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,498.30 : 8,245.11 = 2,120.54 : x
  2. Step 2: Convert to fraction form
    5,498.30/8,245.11 = 2,120.54/x
  3. Step 3: Cross multiply
    5,498.30x = 8,245.11 × 2,120.54
  4. Step 4: Simplify right side
    5,498.30x = 17,484,085.56
  5. Step 5: Solve for x
    x = 17,484,085.56/5,498.30
  6. Step 6: Final answer
    x = 3,179.91

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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.