Home / 3,996.69-5,515.36-2,228.25

Finding the Fourth Proportional to 3,996.69, 5,515.36 and 2,228.25

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Solution

The fourth proportional to 3,996.69, 5,515.36 and 2,228.25 is: 3,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.69 : 5,515.36 = 2,228.25 : x
  2. Step 2: Convert to fraction form
    3,996.69/5,515.36 = 2,228.25/x
  3. Step 3: Cross multiply
    3,996.69x = 5,515.36 × 2,228.25
  4. Step 4: Simplify right side
    3,996.69x = 12,289,600.92
  5. Step 5: Solve for x
    x = 12,289,600.92/3,996.69
  6. Step 6: Final answer
    x = 3,074.94

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Half scale
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Double scale
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Similar ratio
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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.