Home / 5,628.86-7,766.64-3,269.78

Finding the Fourth Proportional to 5,628.86, 7,766.64 and 3,269.78

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Solution

The fourth proportional to 5,628.86, 7,766.64 and 3,269.78 is: 4,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.86 : 7,766.64 = 3,269.78 : x
  2. Step 2: Convert to fraction form
    5,628.86/7,766.64 = 3,269.78/x
  3. Step 3: Cross multiply
    5,628.86x = 7,766.64 × 3,269.78
  4. Step 4: Simplify right side
    5,628.86x = 25,395,204.14
  5. Step 5: Solve for x
    x = 25,395,204.14/5,628.86
  6. Step 6: Final answer
    x = 4,511.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.