Home / 2,765.78-4,147.23-1,304.54

Finding the Fourth Proportional to 2,765.78, 4,147.23 and 1,304.54

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Solution

The fourth proportional to 2,765.78, 4,147.23 and 1,304.54 is: 1,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.78 : 4,147.23 = 1,304.54 : x
  2. Step 2: Convert to fraction form
    2,765.78/4,147.23 = 1,304.54/x
  3. Step 3: Cross multiply
    2,765.78x = 4,147.23 × 1,304.54
  4. Step 4: Simplify right side
    2,765.78x = 5,410,227.42
  5. Step 5: Solve for x
    x = 5,410,227.42/2,765.78
  6. Step 6: Final answer
    x = 1,956.13

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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.