Home / 7,945.99-11,919.07-2,399.38

Finding the Fourth Proportional to 7,945.99, 11,919.07 and 2,399.38

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Solution

The fourth proportional to 7,945.99, 11,919.07 and 2,399.38 is: 3,599.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.99 : 11,919.07 = 2,399.38 : x
  2. Step 2: Convert to fraction form
    7,945.99/11,919.07 = 2,399.38/x
  3. Step 3: Cross multiply
    7,945.99x = 11,919.07 × 2,399.38
  4. Step 4: Simplify right side
    7,945.99x = 28,598,351.38
  5. Step 5: Solve for x
    x = 28,598,351.38/7,945.99
  6. Step 6: Final answer
    x = 3,599.09

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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.