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Finding the Fourth Proportional to 5,838.21, 8,751.73 and 1,939.88

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Solution

The fourth proportional to 5,838.21, 8,751.73 and 1,939.88 is: 2,907.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,838.21 : 8,751.73 = 1,939.88 : x
  2. Step 2: Convert to fraction form
    5,838.21/8,751.73 = 1,939.88/x
  3. Step 3: Cross multiply
    5,838.21x = 8,751.73 × 1,939.88
  4. Step 4: Simplify right side
    5,838.21x = 16,977,305.99
  5. Step 5: Solve for x
    x = 16,977,305.99/5,838.21
  6. Step 6: Final answer
    x = 2,907.96

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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.