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Finding the Fourth Proportional to 2,450.20, 3,674.51 and 806.36

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Solution

The fourth proportional to 2,450.20, 3,674.51 and 806.36 is: 1,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.20 : 3,674.51 = 806.36 : x
  2. Step 2: Convert to fraction form
    2,450.20/3,674.51 = 806.36/x
  3. Step 3: Cross multiply
    2,450.20x = 3,674.51 × 806.36
  4. Step 4: Simplify right side
    2,450.20x = 2,962,961.53
  5. Step 5: Solve for x
    x = 2,962,961.53/2,450.20
  6. Step 6: Final answer
    x = 1,209.27

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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.