Home / 2,278.31-3,418.32-1,181.99

Finding the Fourth Proportional to 2,278.31, 3,418.32 and 1,181.99

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Solution

The fourth proportional to 2,278.31, 3,418.32 and 1,181.99 is: 1,773.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.31 : 3,418.32 = 1,181.99 : x
  2. Step 2: Convert to fraction form
    2,278.31/3,418.32 = 1,181.99/x
  3. Step 3: Cross multiply
    2,278.31x = 3,418.32 × 1,181.99
  4. Step 4: Simplify right side
    2,278.31x = 4,040,420.06
  5. Step 5: Solve for x
    x = 4,040,420.06/2,278.31
  6. Step 6: Final answer
    x = 1,773.43

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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.