Home / 3,481.83-5,222.75-1,287.99

Finding the Fourth Proportional to 3,481.83, 5,222.75 and 1,287.99

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Solution

The fourth proportional to 3,481.83, 5,222.75 and 1,287.99 is: 1,931.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.83 : 5,222.75 = 1,287.99 : x
  2. Step 2: Convert to fraction form
    3,481.83/5,222.75 = 1,287.99/x
  3. Step 3: Cross multiply
    3,481.83x = 5,222.75 × 1,287.99
  4. Step 4: Simplify right side
    3,481.83x = 6,726,843.33
  5. Step 5: Solve for x
    x = 6,726,843.33/3,481.83
  6. Step 6: Final answer
    x = 1,931.99

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Similar ratio
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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.