Home / 3,808.20-5,255.36-2,236.32

Finding the Fourth Proportional to 3,808.20, 5,255.36 and 2,236.32

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Solution

The fourth proportional to 3,808.20, 5,255.36 and 2,236.32 is: 3,086.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.20 : 5,255.36 = 2,236.32 : x
  2. Step 2: Convert to fraction form
    3,808.20/5,255.36 = 2,236.32/x
  3. Step 3: Cross multiply
    3,808.20x = 5,255.36 × 2,236.32
  4. Step 4: Simplify right side
    3,808.20x = 11,752,666.68
  5. Step 5: Solve for x
    x = 11,752,666.68/3,808.20
  6. Step 6: Final answer
    x = 3,086.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.