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Finding the Fourth Proportional to 6,607.80, 9,914.93 and 2,909.56

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Solution

The fourth proportional to 6,607.80, 9,914.93 and 2,909.56 is: 4,365.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607.80 : 9,914.93 = 2,909.56 : x
  2. Step 2: Convert to fraction form
    6,607.80/9,914.93 = 2,909.56/x
  3. Step 3: Cross multiply
    6,607.80x = 9,914.93 × 2,909.56
  4. Step 4: Simplify right side
    6,607.80x = 28,848,083.73
  5. Step 5: Solve for x
    x = 28,848,083.73/6,607.80
  6. Step 6: Final answer
    x = 4,365.76

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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.