Home / 3,768.16-5,199.84-2,112.16

Finding the Fourth Proportional to 3,768.16, 5,199.84 and 2,112.16

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Solution

The fourth proportional to 3,768.16, 5,199.84 and 2,112.16 is: 2,914.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.16 : 5,199.84 = 2,112.16 : x
  2. Step 2: Convert to fraction form
    3,768.16/5,199.84 = 2,112.16/x
  3. Step 3: Cross multiply
    3,768.16x = 5,199.84 × 2,112.16
  4. Step 4: Simplify right side
    3,768.16x = 10,982,894.05
  5. Step 5: Solve for x
    x = 10,982,894.05/3,768.16
  6. Step 6: Final answer
    x = 2,914.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.