Home / 1,998.23-2,755.77-1,252.28

Finding the Fourth Proportional to 1,998.23, 2,755.77 and 1,252.28

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Solution

The fourth proportional to 1,998.23, 2,755.77 and 1,252.28 is: 1,727.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.23 : 2,755.77 = 1,252.28 : x
  2. Step 2: Convert to fraction form
    1,998.23/2,755.77 = 1,252.28/x
  3. Step 3: Cross multiply
    1,998.23x = 2,755.77 × 1,252.28
  4. Step 4: Simplify right side
    1,998.23x = 3,450,981.88
  5. Step 5: Solve for x
    x = 3,450,981.88/1,998.23
  6. Step 6: Final answer
    x = 1,727.02

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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.