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Finding the Fourth Proportional to 4,244, 6,361.66 and 1,780.16

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Solution

The fourth proportional to 4,244, 6,361.66 and 1,780.16 is: 2,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,244 : 6,361.66 = 1,780.16 : x
  2. Step 2: Convert to fraction form
    4,244/6,361.66 = 1,780.16/x
  3. Step 3: Cross multiply
    4,244x = 6,361.66 × 1,780.16
  4. Step 4: Simplify right side
    4,244x = 11,324,772.67
  5. Step 5: Solve for x
    x = 11,324,772.67/4,244
  6. Step 6: Final answer
    x = 2,668.42

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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.