Home / 3,299.85-4,951.71-1,221.32

Finding the Fourth Proportional to 3,299.85, 4,951.71 and 1,221.32

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Solution

The fourth proportional to 3,299.85, 4,951.71 and 1,221.32 is: 1,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.85 : 4,951.71 = 1,221.32 : x
  2. Step 2: Convert to fraction form
    3,299.85/4,951.71 = 1,221.32/x
  3. Step 3: Cross multiply
    3,299.85x = 4,951.71 × 1,221.32
  4. Step 4: Simplify right side
    3,299.85x = 6,047,634.84
  5. Step 5: Solve for x
    x = 6,047,634.84/3,299.85
  6. Step 6: Final answer
    x = 1,832.70

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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.