Home / 2,847.36-4,247.12-2,584.88

Finding the Fourth Proportional to 2,847.36, 4,247.12 and 2,584.88

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Solution

The fourth proportional to 2,847.36, 4,247.12 and 2,584.88 is: 3,855.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.36 : 4,247.12 = 2,584.88 : x
  2. Step 2: Convert to fraction form
    2,847.36/4,247.12 = 2,584.88/x
  3. Step 3: Cross multiply
    2,847.36x = 4,247.12 × 2,584.88
  4. Step 4: Simplify right side
    2,847.36x = 10,978,295.55
  5. Step 5: Solve for x
    x = 10,978,295.55/2,847.36
  6. Step 6: Final answer
    x = 3,855.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.