Home / 2,196.28-3,292.80-808.90

Finding the Fourth Proportional to 2,196.28, 3,292.80 and 808.90

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Solution

The fourth proportional to 2,196.28, 3,292.80 and 808.90 is: 1,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196.28 : 3,292.80 = 808.90 : x
  2. Step 2: Convert to fraction form
    2,196.28/3,292.80 = 808.90/x
  3. Step 3: Cross multiply
    2,196.28x = 3,292.80 × 808.90
  4. Step 4: Simplify right side
    2,196.28x = 2,663,545.92
  5. Step 5: Solve for x
    x = 2,663,545.92/2,196.28
  6. Step 6: Final answer
    x = 1,212.75

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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.