Home / 6,512.99-8,987.39-3,680.62

Finding the Fourth Proportional to 6,512.99, 8,987.39 and 3,680.62

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Solution

The fourth proportional to 6,512.99, 8,987.39 and 3,680.62 is: 5,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.99 : 8,987.39 = 3,680.62 : x
  2. Step 2: Convert to fraction form
    6,512.99/8,987.39 = 3,680.62/x
  3. Step 3: Cross multiply
    6,512.99x = 8,987.39 × 3,680.62
  4. Step 4: Simplify right side
    6,512.99x = 33,079,104.04
  5. Step 5: Solve for x
    x = 33,079,104.04/6,512.99
  6. Step 6: Final answer
    x = 5,078.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.