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Finding the Fourth Proportional to 6,359.51, 9,540.79 and 2,659.69

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Solution

The fourth proportional to 6,359.51, 9,540.79 and 2,659.69 is: 3,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,359.51 : 9,540.79 = 2,659.69 : x
  2. Step 2: Convert to fraction form
    6,359.51/9,540.79 = 2,659.69/x
  3. Step 3: Cross multiply
    6,359.51x = 9,540.79 × 2,659.69
  4. Step 4: Simplify right side
    6,359.51x = 25,375,495.36
  5. Step 5: Solve for x
    x = 25,375,495.36/6,359.51
  6. Step 6: Final answer
    x = 3,990.16

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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.