Home / 3,921.42-5,882.20-1,729.68

Finding the Fourth Proportional to 3,921.42, 5,882.20 and 1,729.68

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Solution

The fourth proportional to 3,921.42, 5,882.20 and 1,729.68 is: 2,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.42 : 5,882.20 = 1,729.68 : x
  2. Step 2: Convert to fraction form
    3,921.42/5,882.20 = 1,729.68/x
  3. Step 3: Cross multiply
    3,921.42x = 5,882.20 × 1,729.68
  4. Step 4: Simplify right side
    3,921.42x = 10,174,323.70
  5. Step 5: Solve for x
    x = 10,174,323.70/3,921.42
  6. Step 6: Final answer
    x = 2,594.55

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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.