Home / 4,172.82-5,757.36-3,285.90

Finding the Fourth Proportional to 4,172.82, 5,757.36 and 3,285.90

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Solution

The fourth proportional to 4,172.82, 5,757.36 and 3,285.90 is: 4,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.82 : 5,757.36 = 3,285.90 : x
  2. Step 2: Convert to fraction form
    4,172.82/5,757.36 = 3,285.90/x
  3. Step 3: Cross multiply
    4,172.82x = 5,757.36 × 3,285.90
  4. Step 4: Simplify right side
    4,172.82x = 18,918,109.22
  5. Step 5: Solve for x
    x = 18,918,109.22/4,172.82
  6. Step 6: Final answer
    x = 4,533.65

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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.