Home / 3,975.78-5,961.47-1,896.24

Finding the Fourth Proportional to 3,975.78, 5,961.47 and 1,896.24

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Solution

The fourth proportional to 3,975.78, 5,961.47 and 1,896.24 is: 2,843.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.78 : 5,961.47 = 1,896.24 : x
  2. Step 2: Convert to fraction form
    3,975.78/5,961.47 = 1,896.24/x
  3. Step 3: Cross multiply
    3,975.78x = 5,961.47 × 1,896.24
  4. Step 4: Simplify right side
    3,975.78x = 11,304,368.39
  5. Step 5: Solve for x
    x = 11,304,368.39/3,975.78
  6. Step 6: Final answer
    x = 2,843.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.