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Finding the Fourth Proportional to 6,659.01, 9,989.73 and 3,540.51

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Solution

The fourth proportional to 6,659.01, 9,989.73 and 3,540.51 is: 5,311.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.01 : 9,989.73 = 3,540.51 : x
  2. Step 2: Convert to fraction form
    6,659.01/9,989.73 = 3,540.51/x
  3. Step 3: Cross multiply
    6,659.01x = 9,989.73 × 3,540.51
  4. Step 4: Simplify right side
    6,659.01x = 35,368,738.96
  5. Step 5: Solve for x
    x = 35,368,738.96/6,659.01
  6. Step 6: Final answer
    x = 5,311.41

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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.