Home / 3,669.37-5,511.40-2,191.48

Finding the Fourth Proportional to 3,669.37, 5,511.40 and 2,191.48

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Solution

The fourth proportional to 3,669.37, 5,511.40 and 2,191.48 is: 3,291.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.37 : 5,511.40 = 2,191.48 : x
  2. Step 2: Convert to fraction form
    3,669.37/5,511.40 = 2,191.48/x
  3. Step 3: Cross multiply
    3,669.37x = 5,511.40 × 2,191.48
  4. Step 4: Simplify right side
    3,669.37x = 12,078,122.87
  5. Step 5: Solve for x
    x = 12,078,122.87/3,669.37
  6. Step 6: Final answer
    x = 3,291.61

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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.