Home / 2,579.92-3,873.42-1,331.56

Finding the Fourth Proportional to 2,579.92, 3,873.42 and 1,331.56

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Solution

The fourth proportional to 2,579.92, 3,873.42 and 1,331.56 is: 1,999.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.92 : 3,873.42 = 1,331.56 : x
  2. Step 2: Convert to fraction form
    2,579.92/3,873.42 = 1,331.56/x
  3. Step 3: Cross multiply
    2,579.92x = 3,873.42 × 1,331.56
  4. Step 4: Simplify right side
    2,579.92x = 5,157,674.19
  5. Step 5: Solve for x
    x = 5,157,674.19/2,579.92
  6. Step 6: Final answer
    x = 1,999.16

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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.