Home / 2,765.78-4,148.66-1,304.14

Finding the Fourth Proportional to 2,765.78, 4,148.66 and 1,304.14

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Solution

The fourth proportional to 2,765.78, 4,148.66 and 1,304.14 is: 1,956.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.78 : 4,148.66 = 1,304.14 : x
  2. Step 2: Convert to fraction form
    2,765.78/4,148.66 = 1,304.14/x
  3. Step 3: Cross multiply
    2,765.78x = 4,148.66 × 1,304.14
  4. Step 4: Simplify right side
    2,765.78x = 5,410,433.45
  5. Step 5: Solve for x
    x = 5,410,433.45/2,765.78
  6. Step 6: Final answer
    x = 1,956.21

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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.