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Finding the Fourth Proportional to 7,482.05, 11,221.28 and 2,287.97

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Solution

The fourth proportional to 7,482.05, 11,221.28 and 2,287.97 is: 3,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.05 : 11,221.28 = 2,287.97 : x
  2. Step 2: Convert to fraction form
    7,482.05/11,221.28 = 2,287.97/x
  3. Step 3: Cross multiply
    7,482.05x = 11,221.28 × 2,287.97
  4. Step 4: Simplify right side
    7,482.05x = 25,673,940.56
  5. Step 5: Solve for x
    x = 25,673,940.56/7,482.05
  6. Step 6: Final answer
    x = 3,431.40

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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.