Home / 3,921.68-5,882.66-1,289.24

Finding the Fourth Proportional to 3,921.68, 5,882.66 and 1,289.24

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Solution

The fourth proportional to 3,921.68, 5,882.66 and 1,289.24 is: 1,933.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.68 : 5,882.66 = 1,289.24 : x
  2. Step 2: Convert to fraction form
    3,921.68/5,882.66 = 1,289.24/x
  3. Step 3: Cross multiply
    3,921.68x = 5,882.66 × 1,289.24
  4. Step 4: Simplify right side
    3,921.68x = 7,584,160.58
  5. Step 5: Solve for x
    x = 7,584,160.58/3,921.68
  6. Step 6: Final answer
    x = 1,933.91

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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.