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Finding the Fourth Proportional to 5,562.56, 8,339.38 and 2,787.80

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Solution

The fourth proportional to 5,562.56, 8,339.38 and 2,787.80 is: 4,179.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,562.56 : 8,339.38 = 2,787.80 : x
  2. Step 2: Convert to fraction form
    5,562.56/8,339.38 = 2,787.80/x
  3. Step 3: Cross multiply
    5,562.56x = 8,339.38 × 2,787.80
  4. Step 4: Simplify right side
    5,562.56x = 23,248,537.44
  5. Step 5: Solve for x
    x = 23,248,537.44/5,562.56
  6. Step 6: Final answer
    x = 4,179.47

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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.