Home / 7,787.92-11,680.14-2,241.28

Finding the Fourth Proportional to 7,787.92, 11,680.14 and 2,241.28

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Solution

The fourth proportional to 7,787.92, 11,680.14 and 2,241.28 is: 3,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.92 : 11,680.14 = 2,241.28 : x
  2. Step 2: Convert to fraction form
    7,787.92/11,680.14 = 2,241.28/x
  3. Step 3: Cross multiply
    7,787.92x = 11,680.14 × 2,241.28
  4. Step 4: Simplify right side
    7,787.92x = 26,178,464.18
  5. Step 5: Solve for x
    x = 26,178,464.18/7,787.92
  6. Step 6: Final answer
    x = 3,361.42

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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.