Home / 2,261.92-3,388.88-1,981.14

Finding the Fourth Proportional to 2,261.92, 3,388.88 and 1,981.14

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Solution

The fourth proportional to 2,261.92, 3,388.88 and 1,981.14 is: 2,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.92 : 3,388.88 = 1,981.14 : x
  2. Step 2: Convert to fraction form
    2,261.92/3,388.88 = 1,981.14/x
  3. Step 3: Cross multiply
    2,261.92x = 3,388.88 × 1,981.14
  4. Step 4: Simplify right side
    2,261.92x = 6,713,850.68
  5. Step 5: Solve for x
    x = 6,713,850.68/2,261.92
  6. Step 6: Final answer
    x = 2,968.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.