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Finding the Fourth Proportional to 6,615.34, 9,922.92 and 1,998.34

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Solution

The fourth proportional to 6,615.34, 9,922.92 and 1,998.34 is: 2,997.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.34 : 9,922.92 = 1,998.34 : x
  2. Step 2: Convert to fraction form
    6,615.34/9,922.92 = 1,998.34/x
  3. Step 3: Cross multiply
    6,615.34x = 9,922.92 × 1,998.34
  4. Step 4: Simplify right side
    6,615.34x = 19,829,367.95
  5. Step 5: Solve for x
    x = 19,829,367.95/6,615.34
  6. Step 6: Final answer
    x = 2,997.48

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1.5x scale

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.