Home / 3,687.89-5,087.69-2,194.97

Finding the Fourth Proportional to 3,687.89, 5,087.69 and 2,194.97

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Solution

The fourth proportional to 3,687.89, 5,087.69 and 2,194.97 is: 3,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.89 : 5,087.69 = 2,194.97 : x
  2. Step 2: Convert to fraction form
    3,687.89/5,087.69 = 2,194.97/x
  3. Step 3: Cross multiply
    3,687.89x = 5,087.69 × 2,194.97
  4. Step 4: Simplify right side
    3,687.89x = 11,167,345.13
  5. Step 5: Solve for x
    x = 11,167,345.13/3,687.89
  6. Step 6: Final answer
    x = 3,028.11

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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.