Home / 2,872.23-3,965.19-1,932.96

Finding the Fourth Proportional to 2,872.23, 3,965.19 and 1,932.96

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Solution

The fourth proportional to 2,872.23, 3,965.19 and 1,932.96 is: 2,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.23 : 3,965.19 = 1,932.96 : x
  2. Step 2: Convert to fraction form
    2,872.23/3,965.19 = 1,932.96/x
  3. Step 3: Cross multiply
    2,872.23x = 3,965.19 × 1,932.96
  4. Step 4: Simplify right side
    2,872.23x = 7,664,553.66
  5. Step 5: Solve for x
    x = 7,664,553.66/2,872.23
  6. Step 6: Final answer
    x = 2,668.50

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Half scale
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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.