Home / 3,896.36-5,842.38-1,297.88

Finding the Fourth Proportional to 3,896.36, 5,842.38 and 1,297.88

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Solution

The fourth proportional to 3,896.36, 5,842.38 and 1,297.88 is: 1,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.36 : 5,842.38 = 1,297.88 : x
  2. Step 2: Convert to fraction form
    3,896.36/5,842.38 = 1,297.88/x
  3. Step 3: Cross multiply
    3,896.36x = 5,842.38 × 1,297.88
  4. Step 4: Simplify right side
    3,896.36x = 7,582,708.15
  5. Step 5: Solve for x
    x = 7,582,708.15/3,896.36
  6. Step 6: Final answer
    x = 1,946.10

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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.