Home / 3,996.68-5,515.45-2,319.09

Finding the Fourth Proportional to 3,996.68, 5,515.45 and 2,319.09

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Solution

The fourth proportional to 3,996.68, 5,515.45 and 2,319.09 is: 3,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.68 : 5,515.45 = 2,319.09 : x
  2. Step 2: Convert to fraction form
    3,996.68/5,515.45 = 2,319.09/x
  3. Step 3: Cross multiply
    3,996.68x = 5,515.45 × 2,319.09
  4. Step 4: Simplify right side
    3,996.68x = 12,790,824.94
  5. Step 5: Solve for x
    x = 12,790,824.94/3,996.68
  6. Step 6: Final answer
    x = 3,200.36

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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.