Home / 3,965.80-5,472.74-2,197.38

Finding the Fourth Proportional to 3,965.80, 5,472.74 and 2,197.38

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Solution

The fourth proportional to 3,965.80, 5,472.74 and 2,197.38 is: 3,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.80 : 5,472.74 = 2,197.38 : x
  2. Step 2: Convert to fraction form
    3,965.80/5,472.74 = 2,197.38/x
  3. Step 3: Cross multiply
    3,965.80x = 5,472.74 × 2,197.38
  4. Step 4: Simplify right side
    3,965.80x = 12,025,689.42
  5. Step 5: Solve for x
    x = 12,025,689.42/3,965.80
  6. Step 6: Final answer
    x = 3,032.35

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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.