Home / 3,489.78-5,236.83-2,563.05

Finding the Fourth Proportional to 3,489.78, 5,236.83 and 2,563.05

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Solution

The fourth proportional to 3,489.78, 5,236.83 and 2,563.05 is: 3,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.78 : 5,236.83 = 2,563.05 : x
  2. Step 2: Convert to fraction form
    3,489.78/5,236.83 = 2,563.05/x
  3. Step 3: Cross multiply
    3,489.78x = 5,236.83 × 2,563.05
  4. Step 4: Simplify right side
    3,489.78x = 13,422,257.13
  5. Step 5: Solve for x
    x = 13,422,257.13/3,489.78
  6. Step 6: Final answer
    x = 3,846.16

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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.