Home / 4,121.92-6,184.91-1,930.80

Finding the Fourth Proportional to 4,121.92, 6,184.91 and 1,930.80

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Solution

The fourth proportional to 4,121.92, 6,184.91 and 1,930.80 is: 2,897.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.92 : 6,184.91 = 1,930.80 : x
  2. Step 2: Convert to fraction form
    4,121.92/6,184.91 = 1,930.80/x
  3. Step 3: Cross multiply
    4,121.92x = 6,184.91 × 1,930.80
  4. Step 4: Simplify right side
    4,121.92x = 11,941,824.23
  5. Step 5: Solve for x
    x = 11,941,824.23/4,121.92
  6. Step 6: Final answer
    x = 2,897.15

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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.