Home / 7,984.97-11,975.53-3,540.19

Finding the Fourth Proportional to 7,984.97, 11,975.53 and 3,540.19

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Solution

The fourth proportional to 7,984.97, 11,975.53 and 3,540.19 is: 5,309.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.97 : 11,975.53 = 3,540.19 : x
  2. Step 2: Convert to fraction form
    7,984.97/11,975.53 = 3,540.19/x
  3. Step 3: Cross multiply
    7,984.97x = 11,975.53 × 3,540.19
  4. Step 4: Simplify right side
    7,984.97x = 42,395,651.55
  5. Step 5: Solve for x
    x = 42,395,651.55/7,984.97
  6. Step 6: Final answer
    x = 5,309.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.