Home / 3,787.89-5,678.99-2,551.83

Finding the Fourth Proportional to 3,787.89, 5,678.99 and 2,551.83

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Solution

The fourth proportional to 3,787.89, 5,678.99 and 2,551.83 is: 3,825.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.89 : 5,678.99 = 2,551.83 : x
  2. Step 2: Convert to fraction form
    3,787.89/5,678.99 = 2,551.83/x
  3. Step 3: Cross multiply
    3,787.89x = 5,678.99 × 2,551.83
  4. Step 4: Simplify right side
    3,787.89x = 14,491,817.05
  5. Step 5: Solve for x
    x = 14,491,817.05/3,787.89
  6. Step 6: Final answer
    x = 3,825.83

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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.