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Finding the Fourth Proportional to 3,747.98, 5,620.60 and 1,556.88

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Solution

The fourth proportional to 3,747.98, 5,620.60 and 1,556.88 is: 2,334.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.98 : 5,620.60 = 1,556.88 : x
  2. Step 2: Convert to fraction form
    3,747.98/5,620.60 = 1,556.88/x
  3. Step 3: Cross multiply
    3,747.98x = 5,620.60 × 1,556.88
  4. Step 4: Simplify right side
    3,747.98x = 8,750,599.73
  5. Step 5: Solve for x
    x = 8,750,599.73/3,747.98
  6. Step 6: Final answer
    x = 2,334.75

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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.