Home / 3,579.45-5,372.61-1,939.47

Finding the Fourth Proportional to 3,579.45, 5,372.61 and 1,939.47

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Solution

The fourth proportional to 3,579.45, 5,372.61 and 1,939.47 is: 2,911.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.45 : 5,372.61 = 1,939.47 : x
  2. Step 2: Convert to fraction form
    3,579.45/5,372.61 = 1,939.47/x
  3. Step 3: Cross multiply
    3,579.45x = 5,372.61 × 1,939.47
  4. Step 4: Simplify right side
    3,579.45x = 10,420,015.92
  5. Step 5: Solve for x
    x = 10,420,015.92/3,579.45
  6. Step 6: Final answer
    x = 2,911.07

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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.