Home / 6,115.97-8,440.04-3,321.47

Finding the Fourth Proportional to 6,115.97, 8,440.04 and 3,321.47

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Solution

The fourth proportional to 6,115.97, 8,440.04 and 3,321.47 is: 4,583.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.97 : 8,440.04 = 3,321.47 : x
  2. Step 2: Convert to fraction form
    6,115.97/8,440.04 = 3,321.47/x
  3. Step 3: Cross multiply
    6,115.97x = 8,440.04 × 3,321.47
  4. Step 4: Simplify right side
    6,115.97x = 28,033,280.85
  5. Step 5: Solve for x
    x = 28,033,280.85/6,115.97
  6. Step 6: Final answer
    x = 4,583.62

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1.5x scale

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.