Home / 3,388.95-5,080.32-1,722.09

Finding the Fourth Proportional to 3,388.95, 5,080.32 and 1,722.09

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Solution

The fourth proportional to 3,388.95, 5,080.32 and 1,722.09 is: 2,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.95 : 5,080.32 = 1,722.09 : x
  2. Step 2: Convert to fraction form
    3,388.95/5,080.32 = 1,722.09/x
  3. Step 3: Cross multiply
    3,388.95x = 5,080.32 × 1,722.09
  4. Step 4: Simplify right side
    3,388.95x = 8,748,768.27
  5. Step 5: Solve for x
    x = 8,748,768.27/3,388.95
  6. Step 6: Final answer
    x = 2,581.56

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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.