Home / 3,388.17-5,081.49-1,720.61

Finding the Fourth Proportional to 3,388.17, 5,081.49 and 1,720.61

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Solution

The fourth proportional to 3,388.17, 5,081.49 and 1,720.61 is: 2,580.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.17 : 5,081.49 = 1,720.61 : x
  2. Step 2: Convert to fraction form
    3,388.17/5,081.49 = 1,720.61/x
  3. Step 3: Cross multiply
    3,388.17x = 5,081.49 × 1,720.61
  4. Step 4: Simplify right side
    3,388.17x = 8,743,237.10
  5. Step 5: Solve for x
    x = 8,743,237.10/3,388.17
  6. Step 6: Final answer
    x = 2,580.52

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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.