Home / 7,076.87-10,618.07-2,147.03

Finding the Fourth Proportional to 7,076.87, 10,618.07 and 2,147.03

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Solution

The fourth proportional to 7,076.87, 10,618.07 and 2,147.03 is: 3,221.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076.87 : 10,618.07 = 2,147.03 : x
  2. Step 2: Convert to fraction form
    7,076.87/10,618.07 = 2,147.03/x
  3. Step 3: Cross multiply
    7,076.87x = 10,618.07 × 2,147.03
  4. Step 4: Simplify right side
    7,076.87x = 22,797,251.01
  5. Step 5: Solve for x
    x = 22,797,251.01/7,076.87
  6. Step 6: Final answer
    x = 3,221.38

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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.