Home / 2,821.17-4,226.94-1,998.08

Finding the Fourth Proportional to 2,821.17, 4,226.94 and 1,998.08

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Solution

The fourth proportional to 2,821.17, 4,226.94 and 1,998.08 is: 2,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.17 : 4,226.94 = 1,998.08 : x
  2. Step 2: Convert to fraction form
    2,821.17/4,226.94 = 1,998.08/x
  3. Step 3: Cross multiply
    2,821.17x = 4,226.94 × 1,998.08
  4. Step 4: Simplify right side
    2,821.17x = 8,445,743.14
  5. Step 5: Solve for x
    x = 8,445,743.14/2,821.17
  6. Step 6: Final answer
    x = 2,993.70

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1.5x scale

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.