Home / 6,118.92-9,176.13-2,115.29

Finding the Fourth Proportional to 6,118.92, 9,176.13 and 2,115.29

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Solution

The fourth proportional to 6,118.92, 9,176.13 and 2,115.29 is: 3,172.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,118.92 : 9,176.13 = 2,115.29 : x
  2. Step 2: Convert to fraction form
    6,118.92/9,176.13 = 2,115.29/x
  3. Step 3: Cross multiply
    6,118.92x = 9,176.13 × 2,115.29
  4. Step 4: Simplify right side
    6,118.92x = 19,410,198.97
  5. Step 5: Solve for x
    x = 19,410,198.97/6,118.92
  6. Step 6: Final answer
    x = 3,172.16

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1.5x scale

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.