Home / 3,076.75-4,243.07-2,721.36

Finding the Fourth Proportional to 3,076.75, 4,243.07 and 2,721.36

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Solution

The fourth proportional to 3,076.75, 4,243.07 and 2,721.36 is: 3,752.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.75 : 4,243.07 = 2,721.36 : x
  2. Step 2: Convert to fraction form
    3,076.75/4,243.07 = 2,721.36/x
  3. Step 3: Cross multiply
    3,076.75x = 4,243.07 × 2,721.36
  4. Step 4: Simplify right side
    3,076.75x = 11,546,907.37
  5. Step 5: Solve for x
    x = 11,546,907.37/3,076.75
  6. Step 6: Final answer
    x = 3,752.96

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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.