Home / 3,858.76-5,323.92-2,179.96

Finding the Fourth Proportional to 3,858.76, 5,323.92 and 2,179.96

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Solution

The fourth proportional to 3,858.76, 5,323.92 and 2,179.96 is: 3,007.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.76 : 5,323.92 = 2,179.96 : x
  2. Step 2: Convert to fraction form
    3,858.76/5,323.92 = 2,179.96/x
  3. Step 3: Cross multiply
    3,858.76x = 5,323.92 × 2,179.96
  4. Step 4: Simplify right side
    3,858.76x = 11,605,932.64
  5. Step 5: Solve for x
    x = 11,605,932.64/3,858.76
  6. Step 6: Final answer
    x = 3,007.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.