Home / 2,112.11-3,168.13-552.09

Finding the Fourth Proportional to 2,112.11, 3,168.13 and 552.09

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Solution

The fourth proportional to 2,112.11, 3,168.13 and 552.09 is: 828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.11 : 3,168.13 = 552.09 : x
  2. Step 2: Convert to fraction form
    2,112.11/3,168.13 = 552.09/x
  3. Step 3: Cross multiply
    2,112.11x = 3,168.13 × 552.09
  4. Step 4: Simplify right side
    2,112.11x = 1,749,092.89
  5. Step 5: Solve for x
    x = 1,749,092.89/2,112.11
  6. Step 6: Final answer
    x = 828.13

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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.