Home / 2,081.37-3,122.05-984.22

Finding the Fourth Proportional to 2,081.37, 3,122.05 and 984.22

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Solution

The fourth proportional to 2,081.37, 3,122.05 and 984.22 is: 1,476.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.37 : 3,122.05 = 984.22 : x
  2. Step 2: Convert to fraction form
    2,081.37/3,122.05 = 984.22/x
  3. Step 3: Cross multiply
    2,081.37x = 3,122.05 × 984.22
  4. Step 4: Simplify right side
    2,081.37x = 3,072,784.05
  5. Step 5: Solve for x
    x = 3,072,784.05/2,081.37
  6. Step 6: Final answer
    x = 1,476.33

Related Problems

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Double scale
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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.