Home / 3,917.28-5,876.64-1,968.48

Finding the Fourth Proportional to 3,917.28, 5,876.64 and 1,968.48

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Solution

The fourth proportional to 3,917.28, 5,876.64 and 1,968.48 is: 2,953.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.28 : 5,876.64 = 1,968.48 : x
  2. Step 2: Convert to fraction form
    3,917.28/5,876.64 = 1,968.48/x
  3. Step 3: Cross multiply
    3,917.28x = 5,876.64 × 1,968.48
  4. Step 4: Simplify right side
    3,917.28x = 11,568,048.31
  5. Step 5: Solve for x
    x = 11,568,048.31/3,917.28
  6. Step 6: Final answer
    x = 2,953.08

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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.