Home / 3,619.44-4,993.56-2,221.68

Finding the Fourth Proportional to 3,619.44, 4,993.56 and 2,221.68

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Solution

The fourth proportional to 3,619.44, 4,993.56 and 2,221.68 is: 3,065.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.44 : 4,993.56 = 2,221.68 : x
  2. Step 2: Convert to fraction form
    3,619.44/4,993.56 = 2,221.68/x
  3. Step 3: Cross multiply
    3,619.44x = 4,993.56 × 2,221.68
  4. Step 4: Simplify right side
    3,619.44x = 11,094,092.38
  5. Step 5: Solve for x
    x = 11,094,092.38/3,619.44
  6. Step 6: Final answer
    x = 3,065.14

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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.