Home / 3,454.52-5,181.80-1,992.40

Finding the Fourth Proportional to 3,454.52, 5,181.80 and 1,992.40

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Solution

The fourth proportional to 3,454.52, 5,181.80 and 1,992.40 is: 2,988.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.52 : 5,181.80 = 1,992.40 : x
  2. Step 2: Convert to fraction form
    3,454.52/5,181.80 = 1,992.40/x
  3. Step 3: Cross multiply
    3,454.52x = 5,181.80 × 1,992.40
  4. Step 4: Simplify right side
    3,454.52x = 10,324,218.32
  5. Step 5: Solve for x
    x = 10,324,218.32/3,454.52
  6. Step 6: Final answer
    x = 2,988.61

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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.