Home / 3,896.05-5,376.62-2,383.86

Finding the Fourth Proportional to 3,896.05, 5,376.62 and 2,383.86

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Solution

The fourth proportional to 3,896.05, 5,376.62 and 2,383.86 is: 3,289.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.05 : 5,376.62 = 2,383.86 : x
  2. Step 2: Convert to fraction form
    3,896.05/5,376.62 = 2,383.86/x
  3. Step 3: Cross multiply
    3,896.05x = 5,376.62 × 2,383.86
  4. Step 4: Simplify right side
    3,896.05x = 12,817,097.43
  5. Step 5: Solve for x
    x = 12,817,097.43/3,896.05
  6. Step 6: Final answer
    x = 3,289.77

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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.