Home / 3,921.40-5,882.51-2,074.60

Finding the Fourth Proportional to 3,921.40, 5,882.51 and 2,074.60

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Solution

The fourth proportional to 3,921.40, 5,882.51 and 2,074.60 is: 3,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.40 : 5,882.51 = 2,074.60 : x
  2. Step 2: Convert to fraction form
    3,921.40/5,882.51 = 2,074.60/x
  3. Step 3: Cross multiply
    3,921.40x = 5,882.51 × 2,074.60
  4. Step 4: Simplify right side
    3,921.40x = 12,203,844.87
  5. Step 5: Solve for x
    x = 12,203,844.87/3,921.40
  6. Step 6: Final answer
    x = 3,112.11

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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.