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Finding the Fourth Proportional to 3,299.62, 4,553.49 and 1,787.20

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Solution

The fourth proportional to 3,299.62, 4,553.49 and 1,787.20 is: 2,466.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.62 : 4,553.49 = 1,787.20 : x
  2. Step 2: Convert to fraction form
    3,299.62/4,553.49 = 1,787.20/x
  3. Step 3: Cross multiply
    3,299.62x = 4,553.49 × 1,787.20
  4. Step 4: Simplify right side
    3,299.62x = 8,137,997.33
  5. Step 5: Solve for x
    x = 8,137,997.33/3,299.62
  6. Step 6: Final answer
    x = 2,466.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.