Home / 3,984.34-5,976.48-1,211.08

Finding the Fourth Proportional to 3,984.34, 5,976.48 and 1,211.08

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Solution

The fourth proportional to 3,984.34, 5,976.48 and 1,211.08 is: 1,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.34 : 5,976.48 = 1,211.08 : x
  2. Step 2: Convert to fraction form
    3,984.34/5,976.48 = 1,211.08/x
  3. Step 3: Cross multiply
    3,984.34x = 5,976.48 × 1,211.08
  4. Step 4: Simplify right side
    3,984.34x = 7,237,995.40
  5. Step 5: Solve for x
    x = 7,237,995.40/3,984.34
  6. Step 6: Final answer
    x = 1,816.61

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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.