Home / 2,375.78-3,278.48-1,299.03

Finding the Fourth Proportional to 2,375.78, 3,278.48 and 1,299.03

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Solution

The fourth proportional to 2,375.78, 3,278.48 and 1,299.03 is: 1,792.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.78 : 3,278.48 = 1,299.03 : x
  2. Step 2: Convert to fraction form
    2,375.78/3,278.48 = 1,299.03/x
  3. Step 3: Cross multiply
    2,375.78x = 3,278.48 × 1,299.03
  4. Step 4: Simplify right side
    2,375.78x = 4,258,851.72
  5. Step 5: Solve for x
    x = 4,258,851.72/2,375.78
  6. Step 6: Final answer
    x = 1,792.61

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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.