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Finding the Fourth Proportional to 3,651.04, 5,479.82 and 2,611

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Solution

The fourth proportional to 3,651.04, 5,479.82 and 2,611 is: 3,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.04 : 5,479.82 = 2,611 : x
  2. Step 2: Convert to fraction form
    3,651.04/5,479.82 = 2,611/x
  3. Step 3: Cross multiply
    3,651.04x = 5,479.82 × 2,611
  4. Step 4: Simplify right side
    3,651.04x = 14,307,810.02
  5. Step 5: Solve for x
    x = 14,307,810.02/3,651.04
  6. Step 6: Final answer
    x = 3,918.83

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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.