Home / 2,619.15-3,928.77-2,096.73

Finding the Fourth Proportional to 2,619.15, 3,928.77 and 2,096.73

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Solution

The fourth proportional to 2,619.15, 3,928.77 and 2,096.73 is: 3,145.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.15 : 3,928.77 = 2,096.73 : x
  2. Step 2: Convert to fraction form
    2,619.15/3,928.77 = 2,096.73/x
  3. Step 3: Cross multiply
    2,619.15x = 3,928.77 × 2,096.73
  4. Step 4: Simplify right side
    2,619.15x = 8,237,569.92
  5. Step 5: Solve for x
    x = 8,237,569.92/2,619.15
  6. Step 6: Final answer
    x = 3,145.13

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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.