Home / 4,481.36-6,720.64-3,103.56

Finding the Fourth Proportional to 4,481.36, 6,720.64 and 3,103.56

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Solution

The fourth proportional to 4,481.36, 6,720.64 and 3,103.56 is: 4,654.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481.36 : 6,720.64 = 3,103.56 : x
  2. Step 2: Convert to fraction form
    4,481.36/6,720.64 = 3,103.56/x
  3. Step 3: Cross multiply
    4,481.36x = 6,720.64 × 3,103.56
  4. Step 4: Simplify right side
    4,481.36x = 20,857,909.48
  5. Step 5: Solve for x
    x = 20,857,909.48/4,481.36
  6. Step 6: Final answer
    x = 4,654.37

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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.