Home / 2,863.15-4,290.67-1,218.04

Finding the Fourth Proportional to 2,863.15, 4,290.67 and 1,218.04

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Solution

The fourth proportional to 2,863.15, 4,290.67 and 1,218.04 is: 1,825.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.15 : 4,290.67 = 1,218.04 : x
  2. Step 2: Convert to fraction form
    2,863.15/4,290.67 = 1,218.04/x
  3. Step 3: Cross multiply
    2,863.15x = 4,290.67 × 1,218.04
  4. Step 4: Simplify right side
    2,863.15x = 5,226,198.48
  5. Step 5: Solve for x
    x = 5,226,198.48/2,863.15
  6. Step 6: Final answer
    x = 1,825.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.