Home / 2,278.46-3,418.22-718.54

Finding the Fourth Proportional to 2,278.46, 3,418.22 and 718.54

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Solution

The fourth proportional to 2,278.46, 3,418.22 and 718.54 is: 1,077.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.46 : 3,418.22 = 718.54 : x
  2. Step 2: Convert to fraction form
    2,278.46/3,418.22 = 718.54/x
  3. Step 3: Cross multiply
    2,278.46x = 3,418.22 × 718.54
  4. Step 4: Simplify right side
    2,278.46x = 2,456,127.80
  5. Step 5: Solve for x
    x = 2,456,127.80/2,278.46
  6. Step 6: Final answer
    x = 1,077.98

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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.