Home / 3,686.61-5,087.39-2,194.59

Finding the Fourth Proportional to 3,686.61, 5,087.39 and 2,194.59

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Solution

The fourth proportional to 3,686.61, 5,087.39 and 2,194.59 is: 3,028.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.61 : 5,087.39 = 2,194.59 : x
  2. Step 2: Convert to fraction form
    3,686.61/5,087.39 = 2,194.59/x
  3. Step 3: Cross multiply
    3,686.61x = 5,087.39 × 2,194.59
  4. Step 4: Simplify right side
    3,686.61x = 11,164,735.22
  5. Step 5: Solve for x
    x = 11,164,735.22/3,686.61
  6. Step 6: Final answer
    x = 3,028.46

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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.