Home / 2,008.96-2,772.66-1,222.86

Finding the Fourth Proportional to 2,008.96, 2,772.66 and 1,222.86

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Solution

The fourth proportional to 2,008.96, 2,772.66 and 1,222.86 is: 1,687.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.96 : 2,772.66 = 1,222.86 : x
  2. Step 2: Convert to fraction form
    2,008.96/2,772.66 = 1,222.86/x
  3. Step 3: Cross multiply
    2,008.96x = 2,772.66 × 1,222.86
  4. Step 4: Simplify right side
    2,008.96x = 3,390,575.01
  5. Step 5: Solve for x
    x = 3,390,575.01/2,008.96
  6. Step 6: Final answer
    x = 1,687.73

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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.