Home / 3,921.24-5,882.70-1,324.12

Finding the Fourth Proportional to 3,921.24, 5,882.70 and 1,324.12

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Solution

The fourth proportional to 3,921.24, 5,882.70 and 1,324.12 is: 1,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.24 : 5,882.70 = 1,324.12 : x
  2. Step 2: Convert to fraction form
    3,921.24/5,882.70 = 1,324.12/x
  3. Step 3: Cross multiply
    3,921.24x = 5,882.70 × 1,324.12
  4. Step 4: Simplify right side
    3,921.24x = 7,789,400.72
  5. Step 5: Solve for x
    x = 7,789,400.72/3,921.24
  6. Step 6: Final answer
    x = 1,986.46

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1.5x scale

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.