Home / 2,834.96-3,908.48-1,949.20

Finding the Fourth Proportional to 2,834.96, 3,908.48 and 1,949.20

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Solution

The fourth proportional to 2,834.96, 3,908.48 and 1,949.20 is: 2,687.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.96 : 3,908.48 = 1,949.20 : x
  2. Step 2: Convert to fraction form
    2,834.96/3,908.48 = 1,949.20/x
  3. Step 3: Cross multiply
    2,834.96x = 3,908.48 × 1,949.20
  4. Step 4: Simplify right side
    2,834.96x = 7,618,409.22
  5. Step 5: Solve for x
    x = 7,618,409.22/2,834.96
  6. Step 6: Final answer
    x = 2,687.31

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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.