Home / 3,418.73-5,129.84-1,776.59

Finding the Fourth Proportional to 3,418.73, 5,129.84 and 1,776.59

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Solution

The fourth proportional to 3,418.73, 5,129.84 and 1,776.59 is: 2,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.73 : 5,129.84 = 1,776.59 : x
  2. Step 2: Convert to fraction form
    3,418.73/5,129.84 = 1,776.59/x
  3. Step 3: Cross multiply
    3,418.73x = 5,129.84 × 1,776.59
  4. Step 4: Simplify right side
    3,418.73x = 9,113,601.24
  5. Step 5: Solve for x
    x = 9,113,601.24/3,418.73
  6. Step 6: Final answer
    x = 2,665.79

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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.