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Finding the Fourth Proportional to 3,229, 4,456.38 and 1,832.20

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Solution

The fourth proportional to 3,229, 4,456.38 and 1,832.20 is: 2,528.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,229 : 4,456.38 = 1,832.20 : x
  2. Step 2: Convert to fraction form
    3,229/4,456.38 = 1,832.20/x
  3. Step 3: Cross multiply
    3,229x = 4,456.38 × 1,832.20
  4. Step 4: Simplify right side
    3,229x = 8,164,979.44
  5. Step 5: Solve for x
    x = 8,164,979.44/3,229
  6. Step 6: Final answer
    x = 2,528.64

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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.