Home / 7,990.82-11,986.23-2,798.18

Finding the Fourth Proportional to 7,990.82, 11,986.23 and 2,798.18

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Solution

The fourth proportional to 7,990.82, 11,986.23 and 2,798.18 is: 4,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.82 : 11,986.23 = 2,798.18 : x
  2. Step 2: Convert to fraction form
    7,990.82/11,986.23 = 2,798.18/x
  3. Step 3: Cross multiply
    7,990.82x = 11,986.23 × 2,798.18
  4. Step 4: Simplify right side
    7,990.82x = 33,539,629.06
  5. Step 5: Solve for x
    x = 33,539,629.06/7,990.82
  6. Step 6: Final answer
    x = 4,197.27

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Similar ratio
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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.