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Finding the Fourth Proportional to 3,995.67, 5,993.55 and 1,917.30

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Solution

The fourth proportional to 3,995.67, 5,993.55 and 1,917.30 is: 2,875.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.67 : 5,993.55 = 1,917.30 : x
  2. Step 2: Convert to fraction form
    3,995.67/5,993.55 = 1,917.30/x
  3. Step 3: Cross multiply
    3,995.67x = 5,993.55 × 1,917.30
  4. Step 4: Simplify right side
    3,995.67x = 11,491,433.42
  5. Step 5: Solve for x
    x = 11,491,433.42/3,995.67
  6. Step 6: Final answer
    x = 2,875.97

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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.