Home / 3,468.22-5,198.52-1,387.72

Finding the Fourth Proportional to 3,468.22, 5,198.52 and 1,387.72

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Solution

The fourth proportional to 3,468.22, 5,198.52 and 1,387.72 is: 2,080.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.22 : 5,198.52 = 1,387.72 : x
  2. Step 2: Convert to fraction form
    3,468.22/5,198.52 = 1,387.72/x
  3. Step 3: Cross multiply
    3,468.22x = 5,198.52 × 1,387.72
  4. Step 4: Simplify right side
    3,468.22x = 7,214,090.17
  5. Step 5: Solve for x
    x = 7,214,090.17/3,468.22
  6. Step 6: Final answer
    x = 2,080.06

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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.