Home / 3,965.42-5,471.98-2,197.06

Finding the Fourth Proportional to 3,965.42, 5,471.98 and 2,197.06

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Solution

The fourth proportional to 3,965.42, 5,471.98 and 2,197.06 is: 3,031.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.42 : 5,471.98 = 2,197.06 : x
  2. Step 2: Convert to fraction form
    3,965.42/5,471.98 = 2,197.06/x
  3. Step 3: Cross multiply
    3,965.42x = 5,471.98 × 2,197.06
  4. Step 4: Simplify right side
    3,965.42x = 12,022,249.21
  5. Step 5: Solve for x
    x = 12,022,249.21/3,965.42
  6. Step 6: Final answer
    x = 3,031.77

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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.