Home / 2,828.16-3,906.36-2,040.84

Finding the Fourth Proportional to 2,828.16, 3,906.36 and 2,040.84

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Solution

The fourth proportional to 2,828.16, 3,906.36 and 2,040.84 is: 2,818.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.16 : 3,906.36 = 2,040.84 : x
  2. Step 2: Convert to fraction form
    2,828.16/3,906.36 = 2,040.84/x
  3. Step 3: Cross multiply
    2,828.16x = 3,906.36 × 2,040.84
  4. Step 4: Simplify right side
    2,828.16x = 7,972,255.74
  5. Step 5: Solve for x
    x = 7,972,255.74/2,828.16
  6. Step 6: Final answer
    x = 2,818.88

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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.