Home / 3,078.43-4,253.81-2,192.69

Finding the Fourth Proportional to 3,078.43, 4,253.81 and 2,192.69

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Solution

The fourth proportional to 3,078.43, 4,253.81 and 2,192.69 is: 3,029.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.43 : 4,253.81 = 2,192.69 : x
  2. Step 2: Convert to fraction form
    3,078.43/4,253.81 = 2,192.69/x
  3. Step 3: Cross multiply
    3,078.43x = 4,253.81 × 2,192.69
  4. Step 4: Simplify right side
    3,078.43x = 9,327,286.65
  5. Step 5: Solve for x
    x = 9,327,286.65/3,078.43
  6. Step 6: Final answer
    x = 3,029.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.