Home / 6,121.76-9,185.44-2,612.72

Finding the Fourth Proportional to 6,121.76, 9,185.44 and 2,612.72

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Solution

The fourth proportional to 6,121.76, 9,185.44 and 2,612.72 is: 3,920.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.76 : 9,185.44 = 2,612.72 : x
  2. Step 2: Convert to fraction form
    6,121.76/9,185.44 = 2,612.72/x
  3. Step 3: Cross multiply
    6,121.76x = 9,185.44 × 2,612.72
  4. Step 4: Simplify right side
    6,121.76x = 23,998,982.80
  5. Step 5: Solve for x
    x = 23,998,982.80/6,121.76
  6. Step 6: Final answer
    x = 3,920.28

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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.