Home / 3,934.36-5,896.14-1,987.84

Finding the Fourth Proportional to 3,934.36, 5,896.14 and 1,987.84

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Solution

The fourth proportional to 3,934.36, 5,896.14 and 1,987.84 is: 2,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.36 : 5,896.14 = 1,987.84 : x
  2. Step 2: Convert to fraction form
    3,934.36/5,896.14 = 1,987.84/x
  3. Step 3: Cross multiply
    3,934.36x = 5,896.14 × 1,987.84
  4. Step 4: Simplify right side
    3,934.36x = 11,720,582.94
  5. Step 5: Solve for x
    x = 11,720,582.94/3,934.36
  6. Step 6: Final answer
    x = 2,979.03

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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.