Home / 2,206.91-3,287.42-2,087.54

Finding the Fourth Proportional to 2,206.91, 3,287.42 and 2,087.54

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Solution

The fourth proportional to 2,206.91, 3,287.42 and 2,087.54 is: 3,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.91 : 3,287.42 = 2,087.54 : x
  2. Step 2: Convert to fraction form
    2,206.91/3,287.42 = 2,087.54/x
  3. Step 3: Cross multiply
    2,206.91x = 3,287.42 × 2,087.54
  4. Step 4: Simplify right side
    2,206.91x = 6,862,593.87
  5. Step 5: Solve for x
    x = 6,862,593.87/2,206.91
  6. Step 6: Final answer
    x = 3,109.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.