Home / 3,956.73-5,460.36-2,278.68

Finding the Fourth Proportional to 3,956.73, 5,460.36 and 2,278.68

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Solution

The fourth proportional to 3,956.73, 5,460.36 and 2,278.68 is: 3,144.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.73 : 5,460.36 = 2,278.68 : x
  2. Step 2: Convert to fraction form
    3,956.73/5,460.36 = 2,278.68/x
  3. Step 3: Cross multiply
    3,956.73x = 5,460.36 × 2,278.68
  4. Step 4: Simplify right side
    3,956.73x = 12,442,413.12
  5. Step 5: Solve for x
    x = 12,442,413.12/3,956.73
  6. Step 6: Final answer
    x = 3,144.62

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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.