Home / 3,965.78-5,473.10-2,197.55

Finding the Fourth Proportional to 3,965.78, 5,473.10 and 2,197.55

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Solution

The fourth proportional to 3,965.78, 5,473.10 and 2,197.55 is: 3,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.78 : 5,473.10 = 2,197.55 : x
  2. Step 2: Convert to fraction form
    3,965.78/5,473.10 = 2,197.55/x
  3. Step 3: Cross multiply
    3,965.78x = 5,473.10 × 2,197.55
  4. Step 4: Simplify right side
    3,965.78x = 12,027,402.72
  5. Step 5: Solve for x
    x = 12,027,402.72/3,965.78
  6. Step 6: Final answer
    x = 3,032.80

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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.