Home / 3,081.39-4,260.41-2,943.69

Finding the Fourth Proportional to 3,081.39, 4,260.41 and 2,943.69

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Solution

The fourth proportional to 3,081.39, 4,260.41 and 2,943.69 is: 4,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.39 : 4,260.41 = 2,943.69 : x
  2. Step 2: Convert to fraction form
    3,081.39/4,260.41 = 2,943.69/x
  3. Step 3: Cross multiply
    3,081.39x = 4,260.41 × 2,943.69
  4. Step 4: Simplify right side
    3,081.39x = 12,541,305.01
  5. Step 5: Solve for x
    x = 12,541,305.01/3,081.39
  6. Step 6: Final answer
    x = 4,070.02

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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.