Home / 2,916.26-3,998.17-2,863.80

Finding the Fourth Proportional to 2,916.26, 3,998.17 and 2,863.80

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Solution

The fourth proportional to 2,916.26, 3,998.17 and 2,863.80 is: 3,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.26 : 3,998.17 = 2,863.80 : x
  2. Step 2: Convert to fraction form
    2,916.26/3,998.17 = 2,863.80/x
  3. Step 3: Cross multiply
    2,916.26x = 3,998.17 × 2,863.80
  4. Step 4: Simplify right side
    2,916.26x = 11,449,962.83
  5. Step 5: Solve for x
    x = 11,449,962.83/2,916.26
  6. Step 6: Final answer
    x = 3,926.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.