Home / 2,722.92-4,078.26-1,665.90

Finding the Fourth Proportional to 2,722.92, 4,078.26 and 1,665.90

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Solution

The fourth proportional to 2,722.92, 4,078.26 and 1,665.90 is: 2,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.92 : 4,078.26 = 1,665.90 : x
  2. Step 2: Convert to fraction form
    2,722.92/4,078.26 = 1,665.90/x
  3. Step 3: Cross multiply
    2,722.92x = 4,078.26 × 1,665.90
  4. Step 4: Simplify right side
    2,722.92x = 6,793,973.33
  5. Step 5: Solve for x
    x = 6,793,973.33/2,722.92
  6. Step 6: Final answer
    x = 2,495.11

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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.