Home / 3,159.99-4,355.82-2,163.54

Finding the Fourth Proportional to 3,159.99, 4,355.82 and 2,163.54

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Solution

The fourth proportional to 3,159.99, 4,355.82 and 2,163.54 is: 2,982.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.99 : 4,355.82 = 2,163.54 : x
  2. Step 2: Convert to fraction form
    3,159.99/4,355.82 = 2,163.54/x
  3. Step 3: Cross multiply
    3,159.99x = 4,355.82 × 2,163.54
  4. Step 4: Simplify right side
    3,159.99x = 9,424,007.14
  5. Step 5: Solve for x
    x = 9,424,007.14/3,159.99
  6. Step 6: Final answer
    x = 2,982.29

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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.