Home / 5,485.12-8,231.33-2,563.65

Finding the Fourth Proportional to 5,485.12, 8,231.33 and 2,563.65

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Solution

The fourth proportional to 5,485.12, 8,231.33 and 2,563.65 is: 3,847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.12 : 8,231.33 = 2,563.65 : x
  2. Step 2: Convert to fraction form
    5,485.12/8,231.33 = 2,563.65/x
  3. Step 3: Cross multiply
    5,485.12x = 8,231.33 × 2,563.65
  4. Step 4: Simplify right side
    5,485.12x = 21,102,249.15
  5. Step 5: Solve for x
    x = 21,102,249.15/5,485.12
  6. Step 6: Final answer
    x = 3,847.18

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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.