Home / 3,954.39-5,457.09-2,186

Finding the Fourth Proportional to 3,954.39, 5,457.09 and 2,186

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Solution

The fourth proportional to 3,954.39, 5,457.09 and 2,186 is: 3,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.39 : 5,457.09 = 2,186 : x
  2. Step 2: Convert to fraction form
    3,954.39/5,457.09 = 2,186/x
  3. Step 3: Cross multiply
    3,954.39x = 5,457.09 × 2,186
  4. Step 4: Simplify right side
    3,954.39x = 11,929,198.74
  5. Step 5: Solve for x
    x = 11,929,198.74/3,954.39
  6. Step 6: Final answer
    x = 3,016.70

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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.