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Finding the Fourth Proportional to 3,998.25, 5,995.85 and 1,916.04

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Solution

The fourth proportional to 3,998.25, 5,995.85 and 1,916.04 is: 2,873.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.25 : 5,995.85 = 1,916.04 : x
  2. Step 2: Convert to fraction form
    3,998.25/5,995.85 = 1,916.04/x
  3. Step 3: Cross multiply
    3,998.25x = 5,995.85 × 1,916.04
  4. Step 4: Simplify right side
    3,998.25x = 11,488,278.85
  5. Step 5: Solve for x
    x = 11,488,278.85/3,998.25
  6. Step 6: Final answer
    x = 2,873.33

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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.