Home / 2,055.62-3,083.70-1,081.78

Finding the Fourth Proportional to 2,055.62, 3,083.70 and 1,081.78

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Solution

The fourth proportional to 2,055.62, 3,083.70 and 1,081.78 is: 1,622.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055.62 : 3,083.70 = 1,081.78 : x
  2. Step 2: Convert to fraction form
    2,055.62/3,083.70 = 1,081.78/x
  3. Step 3: Cross multiply
    2,055.62x = 3,083.70 × 1,081.78
  4. Step 4: Simplify right side
    2,055.62x = 3,335,884.99
  5. Step 5: Solve for x
    x = 3,335,884.99/2,055.62
  6. Step 6: Final answer
    x = 1,622.81

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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.