Home / 3,917.22-5,871.78-1,968.36

Finding the Fourth Proportional to 3,917.22, 5,871.78 and 1,968.36

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Solution

The fourth proportional to 3,917.22, 5,871.78 and 1,968.36 is: 2,950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.22 : 5,871.78 = 1,968.36 : x
  2. Step 2: Convert to fraction form
    3,917.22/5,871.78 = 1,968.36/x
  3. Step 3: Cross multiply
    3,917.22x = 5,871.78 × 1,968.36
  4. Step 4: Simplify right side
    3,917.22x = 11,557,776.88
  5. Step 5: Solve for x
    x = 11,557,776.88/3,917.22
  6. Step 6: Final answer
    x = 2,950.50

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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.