Home / 3,388.17-5,078.37-2,122.29

Finding the Fourth Proportional to 3,388.17, 5,078.37 and 2,122.29

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Solution

The fourth proportional to 3,388.17, 5,078.37 and 2,122.29 is: 3,181.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.17 : 5,078.37 = 2,122.29 : x
  2. Step 2: Convert to fraction form
    3,388.17/5,078.37 = 2,122.29/x
  3. Step 3: Cross multiply
    3,388.17x = 5,078.37 × 2,122.29
  4. Step 4: Simplify right side
    3,388.17x = 10,777,773.87
  5. Step 5: Solve for x
    x = 10,777,773.87/3,388.17
  6. Step 6: Final answer
    x = 3,181.00

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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.