Home / 3,965.86-5,472.70-2,197.45

Finding the Fourth Proportional to 3,965.86, 5,472.70 and 2,197.45

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Solution

The fourth proportional to 3,965.86, 5,472.70 and 2,197.45 is: 3,032.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.86 : 5,472.70 = 2,197.45 : x
  2. Step 2: Convert to fraction form
    3,965.86/5,472.70 = 2,197.45/x
  3. Step 3: Cross multiply
    3,965.86x = 5,472.70 × 2,197.45
  4. Step 4: Simplify right side
    3,965.86x = 12,025,984.62
  5. Step 5: Solve for x
    x = 12,025,984.62/3,965.86
  6. Step 6: Final answer
    x = 3,032.38

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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.