Home / 3,996.69-5,515.44-2,318.42

Finding the Fourth Proportional to 3,996.69, 5,515.44 and 2,318.42

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Solution

The fourth proportional to 3,996.69, 5,515.44 and 2,318.42 is: 3,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.69 : 5,515.44 = 2,318.42 : x
  2. Step 2: Convert to fraction form
    3,996.69/5,515.44 = 2,318.42/x
  3. Step 3: Cross multiply
    3,996.69x = 5,515.44 × 2,318.42
  4. Step 4: Simplify right side
    3,996.69x = 12,787,078.83
  5. Step 5: Solve for x
    x = 12,787,078.83/3,996.69
  6. Step 6: Final answer
    x = 3,199.42

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Half scale
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Double scale
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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.