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Finding the Fourth Proportional to 6,212.97, 9,314.78 and 2,928.33

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Solution

The fourth proportional to 6,212.97, 9,314.78 and 2,928.33 is: 4,390.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,212.97 : 9,314.78 = 2,928.33 : x
  2. Step 2: Convert to fraction form
    6,212.97/9,314.78 = 2,928.33/x
  3. Step 3: Cross multiply
    6,212.97x = 9,314.78 × 2,928.33
  4. Step 4: Simplify right side
    6,212.97x = 27,276,735.08
  5. Step 5: Solve for x
    x = 27,276,735.08/6,212.97
  6. Step 6: Final answer
    x = 4,390.29

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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.