Home / 7,990.18-11,990.57-2,796.05

Finding the Fourth Proportional to 7,990.18, 11,990.57 and 2,796.05

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Solution

The fourth proportional to 7,990.18, 11,990.57 and 2,796.05 is: 4,195.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.18 : 11,990.57 = 2,796.05 : x
  2. Step 2: Convert to fraction form
    7,990.18/11,990.57 = 2,796.05/x
  3. Step 3: Cross multiply
    7,990.18x = 11,990.57 × 2,796.05
  4. Step 4: Simplify right side
    7,990.18x = 33,526,249.24
  5. Step 5: Solve for x
    x = 33,526,249.24/7,990.18
  6. Step 6: Final answer
    x = 4,195.93

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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.