Home / 2,893.91-4,021.29-2,863.80

Finding the Fourth Proportional to 2,893.91, 4,021.29 and 2,863.80

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Solution

The fourth proportional to 2,893.91, 4,021.29 and 2,863.80 is: 3,979.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.91 : 4,021.29 = 2,863.80 : x
  2. Step 2: Convert to fraction form
    2,893.91/4,021.29 = 2,863.80/x
  3. Step 3: Cross multiply
    2,893.91x = 4,021.29 × 2,863.80
  4. Step 4: Simplify right side
    2,893.91x = 11,516,170.30
  5. Step 5: Solve for x
    x = 11,516,170.30/2,893.91
  6. Step 6: Final answer
    x = 3,979.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.