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Finding the Fourth Proportional to 3,164.99, 4,361.51 and 2,279.12

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Solution

The fourth proportional to 3,164.99, 4,361.51 and 2,279.12 is: 3,140.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,164.99 : 4,361.51 = 2,279.12 : x
  2. Step 2: Convert to fraction form
    3,164.99/4,361.51 = 2,279.12/x
  3. Step 3: Cross multiply
    3,164.99x = 4,361.51 × 2,279.12
  4. Step 4: Simplify right side
    3,164.99x = 9,940,388.56
  5. Step 5: Solve for x
    x = 9,940,388.56/3,164.99
  6. Step 6: Final answer
    x = 3,140.74

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Half scale
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Double scale
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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.