Home / 3,921.92-5,882.58-1,455.62

Finding the Fourth Proportional to 3,921.92, 5,882.58 and 1,455.62

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Solution

The fourth proportional to 3,921.92, 5,882.58 and 1,455.62 is: 2,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.92 : 5,882.58 = 1,455.62 : x
  2. Step 2: Convert to fraction form
    3,921.92/5,882.58 = 1,455.62/x
  3. Step 3: Cross multiply
    3,921.92x = 5,882.58 × 1,455.62
  4. Step 4: Simplify right side
    3,921.92x = 8,562,801.10
  5. Step 5: Solve for x
    x = 8,562,801.10/3,921.92
  6. Step 6: Final answer
    x = 2,183.32

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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.