Home / 4,289.20-5,911.16-3,239.60

Finding the Fourth Proportional to 4,289.20, 5,911.16 and 3,239.60

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Solution

The fourth proportional to 4,289.20, 5,911.16 and 3,239.60 is: 4,464.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.20 : 5,911.16 = 3,239.60 : x
  2. Step 2: Convert to fraction form
    4,289.20/5,911.16 = 3,239.60/x
  3. Step 3: Cross multiply
    4,289.20x = 5,911.16 × 3,239.60
  4. Step 4: Simplify right side
    4,289.20x = 19,149,793.94
  5. Step 5: Solve for x
    x = 19,149,793.94/4,289.20
  6. Step 6: Final answer
    x = 4,464.65

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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.