Home / 1,226.88-1,837.89-1,181.79

Finding the Fourth Proportional to 1,226.88, 1,837.89 and 1,181.79

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Solution

The fourth proportional to 1,226.88, 1,837.89 and 1,181.79 is: 1,770.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.88 : 1,837.89 = 1,181.79 : x
  2. Step 2: Convert to fraction form
    1,226.88/1,837.89 = 1,181.79/x
  3. Step 3: Cross multiply
    1,226.88x = 1,837.89 × 1,181.79
  4. Step 4: Simplify right side
    1,226.88x = 2,172,000.02
  5. Step 5: Solve for x
    x = 2,172,000.02/1,226.88
  6. Step 6: Final answer
    x = 1,770.34

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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.