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Finding the Fourth Proportional to 5,211.58, 7,810.09 and 3,743.86

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Solution

The fourth proportional to 5,211.58, 7,810.09 and 3,743.86 is: 5,610.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.58 : 7,810.09 = 3,743.86 : x
  2. Step 2: Convert to fraction form
    5,211.58/7,810.09 = 3,743.86/x
  3. Step 3: Cross multiply
    5,211.58x = 7,810.09 × 3,743.86
  4. Step 4: Simplify right side
    5,211.58x = 29,239,883.55
  5. Step 5: Solve for x
    x = 29,239,883.55/5,211.58
  6. Step 6: Final answer
    x = 5,610.56

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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.