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Finding the Fourth Proportional to 6,599.67, 9,897.21 and 1,918.41

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Solution

The fourth proportional to 6,599.67, 9,897.21 and 1,918.41 is: 2,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,599.67 : 9,897.21 = 1,918.41 : x
  2. Step 2: Convert to fraction form
    6,599.67/9,897.21 = 1,918.41/x
  3. Step 3: Cross multiply
    6,599.67x = 9,897.21 × 1,918.41
  4. Step 4: Simplify right side
    6,599.67x = 18,986,906.64
  5. Step 5: Solve for x
    x = 18,986,906.64/6,599.67
  6. Step 6: Final answer
    x = 2,876.95

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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.