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Finding the Fourth Proportional to 2,787.94, 4,183.53 and 1,248.94

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Solution

The fourth proportional to 2,787.94, 4,183.53 and 1,248.94 is: 1,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.94 : 4,183.53 = 1,248.94 : x
  2. Step 2: Convert to fraction form
    2,787.94/4,183.53 = 1,248.94/x
  3. Step 3: Cross multiply
    2,787.94x = 4,183.53 × 1,248.94
  4. Step 4: Simplify right side
    2,787.94x = 5,224,962.82
  5. Step 5: Solve for x
    x = 5,224,962.82/2,787.94
  6. Step 6: Final answer
    x = 1,874.13

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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.