Home / 7,945.94-11,922.75-3,269.40

Finding the Fourth Proportional to 7,945.94, 11,922.75 and 3,269.40

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Solution

The fourth proportional to 7,945.94, 11,922.75 and 3,269.40 is: 4,905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.94 : 11,922.75 = 3,269.40 : x
  2. Step 2: Convert to fraction form
    7,945.94/11,922.75 = 3,269.40/x
  3. Step 3: Cross multiply
    7,945.94x = 11,922.75 × 3,269.40
  4. Step 4: Simplify right side
    7,945.94x = 38,980,238.85
  5. Step 5: Solve for x
    x = 38,980,238.85/7,945.94
  6. Step 6: Final answer
    x = 4,905.68

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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.