Home / 2,829.33-3,906.36-2,169.63

Finding the Fourth Proportional to 2,829.33, 3,906.36 and 2,169.63

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Solution

The fourth proportional to 2,829.33, 3,906.36 and 2,169.63 is: 2,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.33 : 3,906.36 = 2,169.63 : x
  2. Step 2: Convert to fraction form
    2,829.33/3,906.36 = 2,169.63/x
  3. Step 3: Cross multiply
    2,829.33x = 3,906.36 × 2,169.63
  4. Step 4: Simplify right side
    2,829.33x = 8,475,355.85
  5. Step 5: Solve for x
    x = 8,475,355.85/2,829.33
  6. Step 6: Final answer
    x = 2,995.53

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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.