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Finding the Fourth Proportional to 2,787.83, 4,181.76 and 2,267.22

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Solution

The fourth proportional to 2,787.83, 4,181.76 and 2,267.22 is: 3,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.83 : 4,181.76 = 2,267.22 : x
  2. Step 2: Convert to fraction form
    2,787.83/4,181.76 = 2,267.22/x
  3. Step 3: Cross multiply
    2,787.83x = 4,181.76 × 2,267.22
  4. Step 4: Simplify right side
    2,787.83x = 9,480,969.91
  5. Step 5: Solve for x
    x = 9,480,969.91/2,787.83
  6. Step 6: Final answer
    x = 3,400.84

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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.