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Finding the Fourth Proportional to 2,722.66, 4,078.64 and 1,795.39

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Solution

The fourth proportional to 2,722.66, 4,078.64 and 1,795.39 is: 2,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.66 : 4,078.64 = 1,795.39 : x
  2. Step 2: Convert to fraction form
    2,722.66/4,078.64 = 1,795.39/x
  3. Step 3: Cross multiply
    2,722.66x = 4,078.64 × 1,795.39
  4. Step 4: Simplify right side
    2,722.66x = 7,322,730.30
  5. Step 5: Solve for x
    x = 7,322,730.30/2,722.66
  6. Step 6: Final answer
    x = 2,689.55

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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.