Home / 5,112.73-7,669.10-2,190.79

Finding the Fourth Proportional to 5,112.73, 7,669.10 and 2,190.79

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Solution

The fourth proportional to 5,112.73, 7,669.10 and 2,190.79 is: 3,286.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.73 : 7,669.10 = 2,190.79 : x
  2. Step 2: Convert to fraction form
    5,112.73/7,669.10 = 2,190.79/x
  3. Step 3: Cross multiply
    5,112.73x = 7,669.10 × 2,190.79
  4. Step 4: Simplify right side
    5,112.73x = 16,801,376.64
  5. Step 5: Solve for x
    x = 16,801,376.64/5,112.73
  6. Step 6: Final answer
    x = 3,286.19

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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.