Home / 2,169.19-2,992.73-1,224.86

Finding the Fourth Proportional to 2,169.19, 2,992.73 and 1,224.86

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Solution

The fourth proportional to 2,169.19, 2,992.73 and 1,224.86 is: 1,689.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.19 : 2,992.73 = 1,224.86 : x
  2. Step 2: Convert to fraction form
    2,169.19/2,992.73 = 1,224.86/x
  3. Step 3: Cross multiply
    2,169.19x = 2,992.73 × 1,224.86
  4. Step 4: Simplify right side
    2,169.19x = 3,665,675.27
  5. Step 5: Solve for x
    x = 3,665,675.27/2,169.19
  6. Step 6: Final answer
    x = 1,689.88

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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.