Home / 2,197.22-3,293.85-809.60

Finding the Fourth Proportional to 2,197.22, 3,293.85 and 809.60

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Solution

The fourth proportional to 2,197.22, 3,293.85 and 809.60 is: 1,213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.22 : 3,293.85 = 809.60 : x
  2. Step 2: Convert to fraction form
    2,197.22/3,293.85 = 809.60/x
  3. Step 3: Cross multiply
    2,197.22x = 3,293.85 × 809.60
  4. Step 4: Simplify right side
    2,197.22x = 2,666,700.96
  5. Step 5: Solve for x
    x = 2,666,700.96/2,197.22
  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.