Home / 2,680.92-4,027.55-1,902.86

Finding the Fourth Proportional to 2,680.92, 4,027.55 and 1,902.86

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Solution

The fourth proportional to 2,680.92, 4,027.55 and 1,902.86 is: 2,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.92 : 4,027.55 = 1,902.86 : x
  2. Step 2: Convert to fraction form
    2,680.92/4,027.55 = 1,902.86/x
  3. Step 3: Cross multiply
    2,680.92x = 4,027.55 × 1,902.86
  4. Step 4: Simplify right side
    2,680.92x = 7,663,834.14
  5. Step 5: Solve for x
    x = 7,663,834.14/2,680.92
  6. Step 6: Final answer
    x = 2,858.66

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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.