Home / 3,984.51-5,976.96-1,211.19

Finding the Fourth Proportional to 3,984.51, 5,976.96 and 1,211.19

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Solution

The fourth proportional to 3,984.51, 5,976.96 and 1,211.19 is: 1,816.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.51 : 5,976.96 = 1,211.19 : x
  2. Step 2: Convert to fraction form
    3,984.51/5,976.96 = 1,211.19/x
  3. Step 3: Cross multiply
    3,984.51x = 5,976.96 × 1,211.19
  4. Step 4: Simplify right side
    3,984.51x = 7,239,234.18
  5. Step 5: Solve for x
    x = 7,239,234.18/3,984.51
  6. Step 6: Final answer
    x = 1,816.84

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1.5x scale

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.