Home / 2,546.78-3,821.58-1,376.78

Finding the Fourth Proportional to 2,546.78, 3,821.58 and 1,376.78

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Solution

The fourth proportional to 2,546.78, 3,821.58 and 1,376.78 is: 2,065.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,546.78 : 3,821.58 = 1,376.78 : x
  2. Step 2: Convert to fraction form
    2,546.78/3,821.58 = 1,376.78/x
  3. Step 3: Cross multiply
    2,546.78x = 3,821.58 × 1,376.78
  4. Step 4: Simplify right side
    2,546.78x = 5,261,455.80
  5. Step 5: Solve for x
    x = 5,261,455.80/2,546.78
  6. Step 6: Final answer
    x = 2,065.93

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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.