Home / 2,792.44-4,191.41-2,128.15

Finding the Fourth Proportional to 2,792.44, 4,191.41 and 2,128.15

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Solution

The fourth proportional to 2,792.44, 4,191.41 and 2,128.15 is: 3,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.44 : 4,191.41 = 2,128.15 : x
  2. Step 2: Convert to fraction form
    2,792.44/4,191.41 = 2,128.15/x
  3. Step 3: Cross multiply
    2,792.44x = 4,191.41 × 2,128.15
  4. Step 4: Simplify right side
    2,792.44x = 8,919,949.19
  5. Step 5: Solve for x
    x = 8,919,949.19/2,792.44
  6. Step 6: Final answer
    x = 3,194.32

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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.