Home / 3,388.92-5,085.78-2,157.24

Finding the Fourth Proportional to 3,388.92, 5,085.78 and 2,157.24

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Solution

The fourth proportional to 3,388.92, 5,085.78 and 2,157.24 is: 3,237.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.92 : 5,085.78 = 2,157.24 : x
  2. Step 2: Convert to fraction form
    3,388.92/5,085.78 = 2,157.24/x
  3. Step 3: Cross multiply
    3,388.92x = 5,085.78 × 2,157.24
  4. Step 4: Simplify right side
    3,388.92x = 10,971,248.05
  5. Step 5: Solve for x
    x = 10,971,248.05/3,388.92
  6. Step 6: Final answer
    x = 3,237.39

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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.