Home / 7,982.56-11,975.46-3,305.08

Finding the Fourth Proportional to 7,982.56, 11,975.46 and 3,305.08

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Solution

The fourth proportional to 7,982.56, 11,975.46 and 3,305.08 is: 4,958.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.56 : 11,975.46 = 3,305.08 : x
  2. Step 2: Convert to fraction form
    7,982.56/11,975.46 = 3,305.08/x
  3. Step 3: Cross multiply
    7,982.56x = 11,975.46 × 3,305.08
  4. Step 4: Simplify right side
    7,982.56x = 39,579,853.34
  5. Step 5: Solve for x
    x = 39,579,853.34/7,982.56
  6. Step 6: Final answer
    x = 4,958.29

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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.