Home / 3,189.36-4,771.73-3,181.16

Finding the Fourth Proportional to 3,189.36, 4,771.73 and 3,181.16

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Solution

The fourth proportional to 3,189.36, 4,771.73 and 3,181.16 is: 4,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.36 : 4,771.73 = 3,181.16 : x
  2. Step 2: Convert to fraction form
    3,189.36/4,771.73 = 3,181.16/x
  3. Step 3: Cross multiply
    3,189.36x = 4,771.73 × 3,181.16
  4. Step 4: Simplify right side
    3,189.36x = 15,179,596.84
  5. Step 5: Solve for x
    x = 15,179,596.84/3,189.36
  6. Step 6: Final answer
    x = 4,759.45

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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.