Home / 2,787.03-4,181.40-1,143.27

Finding the Fourth Proportional to 2,787.03, 4,181.40 and 1,143.27

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Solution

The fourth proportional to 2,787.03, 4,181.40 and 1,143.27 is: 1,715.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.03 : 4,181.40 = 1,143.27 : x
  2. Step 2: Convert to fraction form
    2,787.03/4,181.40 = 1,143.27/x
  3. Step 3: Cross multiply
    2,787.03x = 4,181.40 × 1,143.27
  4. Step 4: Simplify right side
    2,787.03x = 4,780,469.18
  5. Step 5: Solve for x
    x = 4,780,469.18/2,787.03
  6. Step 6: Final answer
    x = 1,715.26

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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.