Home / 7,984.08-11,976.12-2,140.54

Finding the Fourth Proportional to 7,984.08, 11,976.12 and 2,140.54

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Solution

The fourth proportional to 7,984.08, 11,976.12 and 2,140.54 is: 3,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.08 : 11,976.12 = 2,140.54 : x
  2. Step 2: Convert to fraction form
    7,984.08/11,976.12 = 2,140.54/x
  3. Step 3: Cross multiply
    7,984.08x = 11,976.12 × 2,140.54
  4. Step 4: Simplify right side
    7,984.08x = 25,635,333.96
  5. Step 5: Solve for x
    x = 25,635,333.96/7,984.08
  6. Step 6: Final answer
    x = 3,210.81

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Similar ratio
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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.