Home / 2,787.65-4,181.46-1,144.20

Finding the Fourth Proportional to 2,787.65, 4,181.46 and 1,144.20

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Solution

The fourth proportional to 2,787.65, 4,181.46 and 1,144.20 is: 1,716.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.65 : 4,181.46 = 1,144.20 : x
  2. Step 2: Convert to fraction form
    2,787.65/4,181.46 = 1,144.20/x
  3. Step 3: Cross multiply
    2,787.65x = 4,181.46 × 1,144.20
  4. Step 4: Simplify right side
    2,787.65x = 4,784,426.53
  5. Step 5: Solve for x
    x = 4,784,426.53/2,787.65
  6. Step 6: Final answer
    x = 1,716.29

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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.