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Finding the Fourth Proportional to 6,498.64, 9,747.73 and 2,115.99

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Solution

The fourth proportional to 6,498.64, 9,747.73 and 2,115.99 is: 3,173.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,498.64 : 9,747.73 = 2,115.99 : x
  2. Step 2: Convert to fraction form
    6,498.64/9,747.73 = 2,115.99/x
  3. Step 3: Cross multiply
    6,498.64x = 9,747.73 × 2,115.99
  4. Step 4: Simplify right side
    6,498.64x = 20,626,101.85
  5. Step 5: Solve for x
    x = 20,626,101.85/6,498.64
  6. Step 6: Final answer
    x = 3,173.91

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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.