Home / 2,839.78-3,917.54-2,446.12

Finding the Fourth Proportional to 2,839.78, 3,917.54 and 2,446.12

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Solution

The fourth proportional to 2,839.78, 3,917.54 and 2,446.12 is: 3,374.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.78 : 3,917.54 = 2,446.12 : x
  2. Step 2: Convert to fraction form
    2,839.78/3,917.54 = 2,446.12/x
  3. Step 3: Cross multiply
    2,839.78x = 3,917.54 × 2,446.12
  4. Step 4: Simplify right side
    2,839.78x = 9,582,772.94
  5. Step 5: Solve for x
    x = 9,582,772.94/2,839.78
  6. Step 6: Final answer
    x = 3,374.48

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1.5x scale

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.