Home / 7,169.68-10,755.20-2,787.47

Finding the Fourth Proportional to 7,169.68, 10,755.20 and 2,787.47

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Solution

The fourth proportional to 7,169.68, 10,755.20 and 2,787.47 is: 4,181.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169.68 : 10,755.20 = 2,787.47 : x
  2. Step 2: Convert to fraction form
    7,169.68/10,755.20 = 2,787.47/x
  3. Step 3: Cross multiply
    7,169.68x = 10,755.20 × 2,787.47
  4. Step 4: Simplify right side
    7,169.68x = 29,979,810.29
  5. Step 5: Solve for x
    x = 29,979,810.29/7,169.68
  6. Step 6: Final answer
    x = 4,181.47

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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.