Home / 3,761.42-5,191.14-2,168.12

Finding the Fourth Proportional to 3,761.42, 5,191.14 and 2,168.12

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Solution

The fourth proportional to 3,761.42, 5,191.14 and 2,168.12 is: 2,992.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.42 : 5,191.14 = 2,168.12 : x
  2. Step 2: Convert to fraction form
    3,761.42/5,191.14 = 2,168.12/x
  3. Step 3: Cross multiply
    3,761.42x = 5,191.14 × 2,168.12
  4. Step 4: Simplify right side
    3,761.42x = 11,255,014.46
  5. Step 5: Solve for x
    x = 11,255,014.46/3,761.42
  6. Step 6: Final answer
    x = 2,992.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.