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Finding the Fourth Proportional to 2,846.49, 3,922.07 and 1,913.37

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Solution

The fourth proportional to 2,846.49, 3,922.07 and 1,913.37 is: 2,636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.49 : 3,922.07 = 1,913.37 : x
  2. Step 2: Convert to fraction form
    2,846.49/3,922.07 = 1,913.37/x
  3. Step 3: Cross multiply
    2,846.49x = 3,922.07 × 1,913.37
  4. Step 4: Simplify right side
    2,846.49x = 7,504,361.51
  5. Step 5: Solve for x
    x = 7,504,361.51/2,846.49
  6. Step 6: Final answer
    x = 2,636.36

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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.