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Finding the Fourth Proportional to 7,850.26, 11,775.39 and 2,656

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Solution

The fourth proportional to 7,850.26, 11,775.39 and 2,656 is: 3,984

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.26 : 11,775.39 = 2,656 : x
  2. Step 2: Convert to fraction form
    7,850.26/11,775.39 = 2,656/x
  3. Step 3: Cross multiply
    7,850.26x = 11,775.39 × 2,656
  4. Step 4: Simplify right side
    7,850.26x = 31,275,435.84
  5. Step 5: Solve for x
    x = 31,275,435.84/7,850.26
  6. Step 6: Final answer
    x = 3,984

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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.