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Finding the Fourth Proportional to 6,490.99, 9,739.56 and 3,369.34

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Solution

The fourth proportional to 6,490.99, 9,739.56 and 3,369.34 is: 5,055.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.99 : 9,739.56 = 3,369.34 : x
  2. Step 2: Convert to fraction form
    6,490.99/9,739.56 = 3,369.34/x
  3. Step 3: Cross multiply
    6,490.99x = 9,739.56 × 3,369.34
  4. Step 4: Simplify right side
    6,490.99x = 32,815,889.09
  5. Step 5: Solve for x
    x = 32,815,889.09/6,490.99
  6. Step 6: Final answer
    x = 5,055.61

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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.