Home / 7,181.35-9,910.09-3,994.64

Finding the Fourth Proportional to 7,181.35, 9,910.09 and 3,994.64

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Solution

The fourth proportional to 7,181.35, 9,910.09 and 3,994.64 is: 5,512.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.35 : 9,910.09 = 3,994.64 : x
  2. Step 2: Convert to fraction form
    7,181.35/9,910.09 = 3,994.64/x
  3. Step 3: Cross multiply
    7,181.35x = 9,910.09 × 3,994.64
  4. Step 4: Simplify right side
    7,181.35x = 39,587,241.92
  5. Step 5: Solve for x
    x = 39,587,241.92/7,181.35
  6. Step 6: Final answer
    x = 5,512.51

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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.