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Finding the Fourth Proportional to 2,066.46, 3,099 and 679.44

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Solution

The fourth proportional to 2,066.46, 3,099 and 679.44 is: 1,018.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,066.46 : 3,099 = 679.44 : x
  2. Step 2: Convert to fraction form
    2,066.46/3,099 = 679.44/x
  3. Step 3: Cross multiply
    2,066.46x = 3,099 × 679.44
  4. Step 4: Simplify right side
    2,066.46x = 2,105,584.56
  5. Step 5: Solve for x
    x = 2,105,584.56/2,066.46
  6. Step 6: Final answer
    x = 1,018.93

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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.