Home / 7,979.96-11,961.80-3,303.28

Finding the Fourth Proportional to 7,979.96, 11,961.80 and 3,303.28

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Solution

The fourth proportional to 7,979.96, 11,961.80 and 3,303.28 is: 4,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.96 : 11,961.80 = 3,303.28 : x
  2. Step 2: Convert to fraction form
    7,979.96/11,961.80 = 3,303.28/x
  3. Step 3: Cross multiply
    7,979.96x = 11,961.80 × 3,303.28
  4. Step 4: Simplify right side
    7,979.96x = 39,513,174.70
  5. Step 5: Solve for x
    x = 39,513,174.70/7,979.96
  6. Step 6: Final answer
    x = 4,951.55

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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.