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Finding the Fourth Proportional to 2,452.41, 3,679.07 and 809.02

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Solution

The fourth proportional to 2,452.41, 3,679.07 and 809.02 is: 1,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,452.41 : 3,679.07 = 809.02 : x
  2. Step 2: Convert to fraction form
    2,452.41/3,679.07 = 809.02/x
  3. Step 3: Cross multiply
    2,452.41x = 3,679.07 × 809.02
  4. Step 4: Simplify right side
    2,452.41x = 2,976,441.21
  5. Step 5: Solve for x
    x = 2,976,441.21/2,452.41
  6. Step 6: Final answer
    x = 1,213.68

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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.