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Finding the Fourth Proportional to 3,995.76, 5,993.64 and 1,398.10

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Solution

The fourth proportional to 3,995.76, 5,993.64 and 1,398.10 is: 2,097.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.76 : 5,993.64 = 1,398.10 : x
  2. Step 2: Convert to fraction form
    3,995.76/5,993.64 = 1,398.10/x
  3. Step 3: Cross multiply
    3,995.76x = 5,993.64 × 1,398.10
  4. Step 4: Simplify right side
    3,995.76x = 8,379,708.08
  5. Step 5: Solve for x
    x = 8,379,708.08/3,995.76
  6. Step 6: Final answer
    x = 2,097.15

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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.