Home / 3,686.82-5,087.86-2,194.70

Finding the Fourth Proportional to 3,686.82, 5,087.86 and 2,194.70

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Solution

The fourth proportional to 3,686.82, 5,087.86 and 2,194.70 is: 3,028.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.82 : 5,087.86 = 2,194.70 : x
  2. Step 2: Convert to fraction form
    3,686.82/5,087.86 = 2,194.70/x
  3. Step 3: Cross multiply
    3,686.82x = 5,087.86 × 2,194.70
  4. Step 4: Simplify right side
    3,686.82x = 11,166,307.76
  5. Step 5: Solve for x
    x = 11,166,307.76/3,686.82
  6. Step 6: Final answer
    x = 3,028.71

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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.