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Finding the Fourth Proportional to 6,659.65, 9,990.56 and 2,499.98

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Solution

The fourth proportional to 6,659.65, 9,990.56 and 2,499.98 is: 3,750.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.65 : 9,990.56 = 2,499.98 : x
  2. Step 2: Convert to fraction form
    6,659.65/9,990.56 = 2,499.98/x
  3. Step 3: Cross multiply
    6,659.65x = 9,990.56 × 2,499.98
  4. Step 4: Simplify right side
    6,659.65x = 24,976,200.19
  5. Step 5: Solve for x
    x = 24,976,200.19/6,659.65
  6. Step 6: Final answer
    x = 3,750.38

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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.