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Finding the Fourth Proportional to 3,995.70, 5,993.01 and 1,074.18

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Solution

The fourth proportional to 3,995.70, 5,993.01 and 1,074.18 is: 1,611.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.70 : 5,993.01 = 1,074.18 : x
  2. Step 2: Convert to fraction form
    3,995.70/5,993.01 = 1,074.18/x
  3. Step 3: Cross multiply
    3,995.70x = 5,993.01 × 1,074.18
  4. Step 4: Simplify right side
    3,995.70x = 6,437,571.48
  5. Step 5: Solve for x
    x = 6,437,571.48/3,995.70
  6. Step 6: Final answer
    x = 1,611.12

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Double scale
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Similar ratio
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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.