Home / 7,269.40-10,908.87-3,984.79

Finding the Fourth Proportional to 7,269.40, 10,908.87 and 3,984.79

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Solution

The fourth proportional to 7,269.40, 10,908.87 and 3,984.79 is: 5,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,269.40 : 10,908.87 = 3,984.79 : x
  2. Step 2: Convert to fraction form
    7,269.40/10,908.87 = 3,984.79/x
  3. Step 3: Cross multiply
    7,269.40x = 10,908.87 × 3,984.79
  4. Step 4: Simplify right side
    7,269.40x = 43,469,556.09
  5. Step 5: Solve for x
    x = 43,469,556.09/7,269.40
  6. Step 6: Final answer
    x = 5,979.80

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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.