Home / 5,249.88-7,238.84-3,921.35

Finding the Fourth Proportional to 5,249.88, 7,238.84 and 3,921.35

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Solution

The fourth proportional to 5,249.88, 7,238.84 and 3,921.35 is: 5,406.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.88 : 7,238.84 = 3,921.35 : x
  2. Step 2: Convert to fraction form
    5,249.88/7,238.84 = 3,921.35/x
  3. Step 3: Cross multiply
    5,249.88x = 7,238.84 × 3,921.35
  4. Step 4: Simplify right side
    5,249.88x = 28,385,969.43
  5. Step 5: Solve for x
    x = 28,385,969.43/5,249.88
  6. Step 6: Final answer
    x = 5,406.97

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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.