Home / 2,836.78-3,914.81-1,717.49

Finding the Fourth Proportional to 2,836.78, 3,914.81 and 1,717.49

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Solution

The fourth proportional to 2,836.78, 3,914.81 and 1,717.49 is: 2,370.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.78 : 3,914.81 = 1,717.49 : x
  2. Step 2: Convert to fraction form
    2,836.78/3,914.81 = 1,717.49/x
  3. Step 3: Cross multiply
    2,836.78x = 3,914.81 × 1,717.49
  4. Step 4: Simplify right side
    2,836.78x = 6,723,647.03
  5. Step 5: Solve for x
    x = 6,723,647.03/2,836.78
  6. Step 6: Final answer
    x = 2,370.17

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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.