Home / 7,479.27-11,218.91-2,799.09

Finding the Fourth Proportional to 7,479.27, 11,218.91 and 2,799.09

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Solution

The fourth proportional to 7,479.27, 11,218.91 and 2,799.09 is: 4,198.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.27 : 11,218.91 = 2,799.09 : x
  2. Step 2: Convert to fraction form
    7,479.27/11,218.91 = 2,799.09/x
  3. Step 3: Cross multiply
    7,479.27x = 11,218.91 × 2,799.09
  4. Step 4: Simplify right side
    7,479.27x = 31,402,724.80
  5. Step 5: Solve for x
    x = 31,402,724.80/7,479.27
  6. Step 6: Final answer
    x = 4,198.64

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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.