Home / 3,389.22-5,080.48-1,906.72

Finding the Fourth Proportional to 3,389.22, 5,080.48 and 1,906.72

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Solution

The fourth proportional to 3,389.22, 5,080.48 and 1,906.72 is: 2,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.22 : 5,080.48 = 1,906.72 : x
  2. Step 2: Convert to fraction form
    3,389.22/5,080.48 = 1,906.72/x
  3. Step 3: Cross multiply
    3,389.22x = 5,080.48 × 1,906.72
  4. Step 4: Simplify right side
    3,389.22x = 9,687,052.83
  5. Step 5: Solve for x
    x = 9,687,052.83/3,389.22
  6. Step 6: Final answer
    x = 2,858.20

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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.