Home / 3,174.12-4,380.89-1,994.36

Finding the Fourth Proportional to 3,174.12, 4,380.89 and 1,994.36

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Solution

The fourth proportional to 3,174.12, 4,380.89 and 1,994.36 is: 2,752.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.12 : 4,380.89 = 1,994.36 : x
  2. Step 2: Convert to fraction form
    3,174.12/4,380.89 = 1,994.36/x
  3. Step 3: Cross multiply
    3,174.12x = 4,380.89 × 1,994.36
  4. Step 4: Simplify right side
    3,174.12x = 8,737,039.90
  5. Step 5: Solve for x
    x = 8,737,039.90/3,174.12
  6. Step 6: Final answer
    x = 2,752.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.