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Finding the Fourth Proportional to 6,605.65, 9,909.08 and 2,389.96

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Solution

The fourth proportional to 6,605.65, 9,909.08 and 2,389.96 is: 3,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.65 : 9,909.08 = 2,389.96 : x
  2. Step 2: Convert to fraction form
    6,605.65/9,909.08 = 2,389.96/x
  3. Step 3: Cross multiply
    6,605.65x = 9,909.08 × 2,389.96
  4. Step 4: Simplify right side
    6,605.65x = 23,682,304.84
  5. Step 5: Solve for x
    x = 23,682,304.84/6,605.65
  6. Step 6: Final answer
    x = 3,585.16

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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.