Home / 3,996.62-5,515.72-2,317.90

Finding the Fourth Proportional to 3,996.62, 5,515.72 and 2,317.90

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Solution

The fourth proportional to 3,996.62, 5,515.72 and 2,317.90 is: 3,198.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.62 : 5,515.72 = 2,317.90 : x
  2. Step 2: Convert to fraction form
    3,996.62/5,515.72 = 2,317.90/x
  3. Step 3: Cross multiply
    3,996.62x = 5,515.72 × 2,317.90
  4. Step 4: Simplify right side
    3,996.62x = 12,784,887.39
  5. Step 5: Solve for x
    x = 12,784,887.39/3,996.62
  6. Step 6: Final answer
    x = 3,198.92

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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.