Home / 3,892.90-5,371.99-2,214.08

Finding the Fourth Proportional to 3,892.90, 5,371.99 and 2,214.08

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Solution

The fourth proportional to 3,892.90, 5,371.99 and 2,214.08 is: 3,055.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.90 : 5,371.99 = 2,214.08 : x
  2. Step 2: Convert to fraction form
    3,892.90/5,371.99 = 2,214.08/x
  3. Step 3: Cross multiply
    3,892.90x = 5,371.99 × 2,214.08
  4. Step 4: Simplify right side
    3,892.90x = 11,894,015.62
  5. Step 5: Solve for x
    x = 11,894,015.62/3,892.90
  6. Step 6: Final answer
    x = 3,055.31

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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.