Home / 7,922.35-11,879.10-3,245.62

Finding the Fourth Proportional to 7,922.35, 11,879.10 and 3,245.62

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Solution

The fourth proportional to 7,922.35, 11,879.10 and 3,245.62 is: 4,866.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.35 : 11,879.10 = 3,245.62 : x
  2. Step 2: Convert to fraction form
    7,922.35/11,879.10 = 3,245.62/x
  3. Step 3: Cross multiply
    7,922.35x = 11,879.10 × 3,245.62
  4. Step 4: Simplify right side
    7,922.35x = 38,555,044.54
  5. Step 5: Solve for x
    x = 38,555,044.54/7,922.35
  6. Step 6: Final answer
    x = 4,866.62

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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.