Home / 2,072.22-3,108.80-1,098.12

Finding the Fourth Proportional to 2,072.22, 3,108.80 and 1,098.12

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Solution

The fourth proportional to 2,072.22, 3,108.80 and 1,098.12 is: 1,647.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.22 : 3,108.80 = 1,098.12 : x
  2. Step 2: Convert to fraction form
    2,072.22/3,108.80 = 1,098.12/x
  3. Step 3: Cross multiply
    2,072.22x = 3,108.80 × 1,098.12
  4. Step 4: Simplify right side
    2,072.22x = 3,413,829.97
  5. Step 5: Solve for x
    x = 3,413,829.97/2,072.22
  6. Step 6: Final answer
    x = 1,647.43

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1.5x scale

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.