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Finding the Fourth Proportional to 6,858.20, 10,287.30 and 2,241.20

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Solution

The fourth proportional to 6,858.20, 10,287.30 and 2,241.20 is: 3,361.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,858.20 : 10,287.30 = 2,241.20 : x
  2. Step 2: Convert to fraction form
    6,858.20/10,287.30 = 2,241.20/x
  3. Step 3: Cross multiply
    6,858.20x = 10,287.30 × 2,241.20
  4. Step 4: Simplify right side
    6,858.20x = 23,055,896.76
  5. Step 5: Solve for x
    x = 23,055,896.76/6,858.20
  6. Step 6: Final answer
    x = 3,361.80

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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.