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Finding the Fourth Proportional to 2,747.94, 3,792.57 and 2,162.88

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Solution

The fourth proportional to 2,747.94, 3,792.57 and 2,162.88 is: 2,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.94 : 3,792.57 = 2,162.88 : x
  2. Step 2: Convert to fraction form
    2,747.94/3,792.57 = 2,162.88/x
  3. Step 3: Cross multiply
    2,747.94x = 3,792.57 × 2,162.88
  4. Step 4: Simplify right side
    2,747.94x = 8,202,873.80
  5. Step 5: Solve for x
    x = 8,202,873.80/2,747.94
  6. Step 6: Final answer
    x = 2,985.10

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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.