Home / 3,686.22-5,087.64-2,195

Finding the Fourth Proportional to 3,686.22, 5,087.64 and 2,195

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Solution

The fourth proportional to 3,686.22, 5,087.64 and 2,195 is: 3,029.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.22 : 5,087.64 = 2,195 : x
  2. Step 2: Convert to fraction form
    3,686.22/5,087.64 = 2,195/x
  3. Step 3: Cross multiply
    3,686.22x = 5,087.64 × 2,195
  4. Step 4: Simplify right side
    3,686.22x = 11,167,369.80
  5. Step 5: Solve for x
    x = 11,167,369.80/3,686.22
  6. Step 6: Final answer
    x = 3,029.49

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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.