Home / 2,197.13-3,295.19-636.80

Finding the Fourth Proportional to 2,197.13, 3,295.19 and 636.80

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Solution

The fourth proportional to 2,197.13, 3,295.19 and 636.80 is: 955.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.13 : 3,295.19 = 636.80 : x
  2. Step 2: Convert to fraction form
    2,197.13/3,295.19 = 636.80/x
  3. Step 3: Cross multiply
    2,197.13x = 3,295.19 × 636.80
  4. Step 4: Simplify right side
    2,197.13x = 2,098,376.99
  5. Step 5: Solve for x
    x = 2,098,376.99/2,197.13
  6. Step 6: Final answer
    x = 955.05

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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.