Home / 2,208.16-3,310.26-908.80

Finding the Fourth Proportional to 2,208.16, 3,310.26 and 908.80

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Solution

The fourth proportional to 2,208.16, 3,310.26 and 908.80 is: 1,362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.16 : 3,310.26 = 908.80 : x
  2. Step 2: Convert to fraction form
    2,208.16/3,310.26 = 908.80/x
  3. Step 3: Cross multiply
    2,208.16x = 3,310.26 × 908.80
  4. Step 4: Simplify right side
    2,208.16x = 3,008,364.29
  5. Step 5: Solve for x
    x = 3,008,364.29/2,208.16
  6. Step 6: Final answer
    x = 1,362.39

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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.