Home / 3,920.12-5,410.32-2,241.88

Finding the Fourth Proportional to 3,920.12, 5,410.32 and 2,241.88

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Solution

The fourth proportional to 3,920.12, 5,410.32 and 2,241.88 is: 3,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.12 : 5,410.32 = 2,241.88 : x
  2. Step 2: Convert to fraction form
    3,920.12/5,410.32 = 2,241.88/x
  3. Step 3: Cross multiply
    3,920.12x = 5,410.32 × 2,241.88
  4. Step 4: Simplify right side
    3,920.12x = 12,129,288.20
  5. Step 5: Solve for x
    x = 12,129,288.20/3,920.12
  6. Step 6: Final answer
    x = 3,094.11

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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.