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Finding the Fourth Proportional to 5,286.27, 7,919.09 and 2,508.99

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Solution

The fourth proportional to 5,286.27, 7,919.09 and 2,508.99 is: 3,758.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.27 : 7,919.09 = 2,508.99 : x
  2. Step 2: Convert to fraction form
    5,286.27/7,919.09 = 2,508.99/x
  3. Step 3: Cross multiply
    5,286.27x = 7,919.09 × 2,508.99
  4. Step 4: Simplify right side
    5,286.27x = 19,868,905.07
  5. Step 5: Solve for x
    x = 19,868,905.07/5,286.27
  6. Step 6: Final answer
    x = 3,758.59

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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.