Home / 7,975.32-11,962.63-2,131.75

Finding the Fourth Proportional to 7,975.32, 11,962.63 and 2,131.75

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Solution

The fourth proportional to 7,975.32, 11,962.63 and 2,131.75 is: 3,197.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.32 : 11,962.63 = 2,131.75 : x
  2. Step 2: Convert to fraction form
    7,975.32/11,962.63 = 2,131.75/x
  3. Step 3: Cross multiply
    7,975.32x = 11,962.63 × 2,131.75
  4. Step 4: Simplify right side
    7,975.32x = 25,501,336.50
  5. Step 5: Solve for x
    x = 25,501,336.50/7,975.32
  6. Step 6: Final answer
    x = 3,197.53

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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.