Home / 3,213.25-4,817.79-2,114.28

Finding the Fourth Proportional to 3,213.25, 4,817.79 and 2,114.28

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Solution

The fourth proportional to 3,213.25, 4,817.79 and 2,114.28 is: 3,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.25 : 4,817.79 = 2,114.28 : x
  2. Step 2: Convert to fraction form
    3,213.25/4,817.79 = 2,114.28/x
  3. Step 3: Cross multiply
    3,213.25x = 4,817.79 × 2,114.28
  4. Step 4: Simplify right side
    3,213.25x = 10,186,157.04
  5. Step 5: Solve for x
    x = 10,186,157.04/3,213.25
  6. Step 6: Final answer
    x = 3,170.05

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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.