Home / 3,109.16-4,289.28-2,224.64

Finding the Fourth Proportional to 3,109.16, 4,289.28 and 2,224.64

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Solution

The fourth proportional to 3,109.16, 4,289.28 and 2,224.64 is: 3,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.16 : 4,289.28 = 2,224.64 : x
  2. Step 2: Convert to fraction form
    3,109.16/4,289.28 = 2,224.64/x
  3. Step 3: Cross multiply
    3,109.16x = 4,289.28 × 2,224.64
  4. Step 4: Simplify right side
    3,109.16x = 9,542,103.86
  5. Step 5: Solve for x
    x = 9,542,103.86/3,109.16
  6. Step 6: Final answer
    x = 3,069.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.