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Finding the Fourth Proportional to 3,671.22, 5,066.33 and 1,992.65

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Solution

The fourth proportional to 3,671.22, 5,066.33 and 1,992.65 is: 2,749.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,671.22 : 5,066.33 = 1,992.65 : x
  2. Step 2: Convert to fraction form
    3,671.22/5,066.33 = 1,992.65/x
  3. Step 3: Cross multiply
    3,671.22x = 5,066.33 × 1,992.65
  4. Step 4: Simplify right side
    3,671.22x = 10,095,397.14
  5. Step 5: Solve for x
    x = 10,095,397.14/3,671.22
  6. Step 6: Final answer
    x = 2,749.88

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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.