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Finding the Fourth Proportional to 3,969.25, 5,954.93 and 1,994.34

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Solution

The fourth proportional to 3,969.25, 5,954.93 and 1,994.34 is: 2,992.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.25 : 5,954.93 = 1,994.34 : x
  2. Step 2: Convert to fraction form
    3,969.25/5,954.93 = 1,994.34/x
  3. Step 3: Cross multiply
    3,969.25x = 5,954.93 × 1,994.34
  4. Step 4: Simplify right side
    3,969.25x = 11,876,155.10
  5. Step 5: Solve for x
    x = 11,876,155.10/3,969.25
  6. Step 6: Final answer
    x = 2,992.04

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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.