Home / 7,923.80-11,882.90-2,728.46

Finding the Fourth Proportional to 7,923.80, 11,882.90 and 2,728.46

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Solution

The fourth proportional to 7,923.80, 11,882.90 and 2,728.46 is: 4,091.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.80 : 11,882.90 = 2,728.46 : x
  2. Step 2: Convert to fraction form
    7,923.80/11,882.90 = 2,728.46/x
  3. Step 3: Cross multiply
    7,923.80x = 11,882.90 × 2,728.46
  4. Step 4: Simplify right side
    7,923.80x = 32,422,017.33
  5. Step 5: Solve for x
    x = 32,422,017.33/7,923.80
  6. Step 6: Final answer
    x = 4,091.73

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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.