Home / 7,987.08-11,983.82-3,370.76

Finding the Fourth Proportional to 7,987.08, 11,983.82 and 3,370.76

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Solution

The fourth proportional to 7,987.08, 11,983.82 and 3,370.76 is: 5,057.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.08 : 11,983.82 = 3,370.76 : x
  2. Step 2: Convert to fraction form
    7,987.08/11,983.82 = 3,370.76/x
  3. Step 3: Cross multiply
    7,987.08x = 11,983.82 × 3,370.76
  4. Step 4: Simplify right side
    7,987.08x = 40,394,581.10
  5. Step 5: Solve for x
    x = 40,394,581.10/7,987.08
  6. Step 6: Final answer
    x = 5,057.49

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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.