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Finding the Fourth Proportional to 3,830.76, 5,747.22 and 1,365.66

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Solution

The fourth proportional to 3,830.76, 5,747.22 and 1,365.66 is: 2,048.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830.76 : 5,747.22 = 1,365.66 : x
  2. Step 2: Convert to fraction form
    3,830.76/5,747.22 = 1,365.66/x
  3. Step 3: Cross multiply
    3,830.76x = 5,747.22 × 1,365.66
  4. Step 4: Simplify right side
    3,830.76x = 7,848,748.47
  5. Step 5: Solve for x
    x = 7,848,748.47/3,830.76
  6. Step 6: Final answer
    x = 2,048.88

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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.