Home / 3,984.36-5,976.58-1,211.48

Finding the Fourth Proportional to 3,984.36, 5,976.58 and 1,211.48

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Solution

The fourth proportional to 3,984.36, 5,976.58 and 1,211.48 is: 1,817.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.36 : 5,976.58 = 1,211.48 : x
  2. Step 2: Convert to fraction form
    3,984.36/5,976.58 = 1,211.48/x
  3. Step 3: Cross multiply
    3,984.36x = 5,976.58 × 1,211.48
  4. Step 4: Simplify right side
    3,984.36x = 7,240,492.12
  5. Step 5: Solve for x
    x = 7,240,492.12/3,984.36
  6. Step 6: Final answer
    x = 1,817.23

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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.