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Finding the Fourth Proportional to 2,195.88, 3,294.12 and 809.04

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Solution

The fourth proportional to 2,195.88, 3,294.12 and 809.04 is: 1,213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.88 : 3,294.12 = 809.04 : x
  2. Step 2: Convert to fraction form
    2,195.88/3,294.12 = 809.04/x
  3. Step 3: Cross multiply
    2,195.88x = 3,294.12 × 809.04
  4. Step 4: Simplify right side
    2,195.88x = 2,665,074.84
  5. Step 5: Solve for x
    x = 2,665,074.84/2,195.88
  6. Step 6: Final answer
    x = 1,213.67

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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.