Home / 7,787.25-11,682-2,520.54

Finding the Fourth Proportional to 7,787.25, 11,682 and 2,520.54

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Solution

The fourth proportional to 7,787.25, 11,682 and 2,520.54 is: 3,781.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.25 : 11,682 = 2,520.54 : x
  2. Step 2: Convert to fraction form
    7,787.25/11,682 = 2,520.54/x
  3. Step 3: Cross multiply
    7,787.25x = 11,682 × 2,520.54
  4. Step 4: Simplify right side
    7,787.25x = 29,444,948.28
  5. Step 5: Solve for x
    x = 29,444,948.28/7,787.25
  6. Step 6: Final answer
    x = 3,781.17

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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.