Home / 3,081.94-4,253.07-1,684.70

Finding the Fourth Proportional to 3,081.94, 4,253.07 and 1,684.70

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Solution

The fourth proportional to 3,081.94, 4,253.07 and 1,684.70 is: 2,324.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.94 : 4,253.07 = 1,684.70 : x
  2. Step 2: Convert to fraction form
    3,081.94/4,253.07 = 1,684.70/x
  3. Step 3: Cross multiply
    3,081.94x = 4,253.07 × 1,684.70
  4. Step 4: Simplify right side
    3,081.94x = 7,165,147.03
  5. Step 5: Solve for x
    x = 7,165,147.03/3,081.94
  6. Step 6: Final answer
    x = 2,324.88

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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.