Home / 7,962.50-11,942.84-2,119.57

Finding the Fourth Proportional to 7,962.50, 11,942.84 and 2,119.57

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Solution

The fourth proportional to 7,962.50, 11,942.84 and 2,119.57 is: 3,179.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.50 : 11,942.84 = 2,119.57 : x
  2. Step 2: Convert to fraction form
    7,962.50/11,942.84 = 2,119.57/x
  3. Step 3: Cross multiply
    7,962.50x = 11,942.84 × 2,119.57
  4. Step 4: Simplify right side
    7,962.50x = 25,313,660.82
  5. Step 5: Solve for x
    x = 25,313,660.82/7,962.50
  6. Step 6: Final answer
    x = 3,179.11

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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.