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Finding the Fourth Proportional to 3,879.49, 5,817.27 and 1,797.70

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Solution

The fourth proportional to 3,879.49, 5,817.27 and 1,797.70 is: 2,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.49 : 5,817.27 = 1,797.70 : x
  2. Step 2: Convert to fraction form
    3,879.49/5,817.27 = 1,797.70/x
  3. Step 3: Cross multiply
    3,879.49x = 5,817.27 × 1,797.70
  4. Step 4: Simplify right side
    3,879.49x = 10,457,706.28
  5. Step 5: Solve for x
    x = 10,457,706.28/3,879.49
  6. Step 6: Final answer
    x = 2,695.64

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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.