Home / 3,839.30-5,297.82-2,160.44

Finding the Fourth Proportional to 3,839.30, 5,297.82 and 2,160.44

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Solution

The fourth proportional to 3,839.30, 5,297.82 and 2,160.44 is: 2,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.30 : 5,297.82 = 2,160.44 : x
  2. Step 2: Convert to fraction form
    3,839.30/5,297.82 = 2,160.44/x
  3. Step 3: Cross multiply
    3,839.30x = 5,297.82 × 2,160.44
  4. Step 4: Simplify right side
    3,839.30x = 11,445,622.24
  5. Step 5: Solve for x
    x = 11,445,622.24/3,839.30
  6. Step 6: Final answer
    x = 2,981.17

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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.