Home / 2,771.83-3,825.66-1,778.37

Finding the Fourth Proportional to 2,771.83, 3,825.66 and 1,778.37

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Solution

The fourth proportional to 2,771.83, 3,825.66 and 1,778.37 is: 2,454.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.83 : 3,825.66 = 1,778.37 : x
  2. Step 2: Convert to fraction form
    2,771.83/3,825.66 = 1,778.37/x
  3. Step 3: Cross multiply
    2,771.83x = 3,825.66 × 1,778.37
  4. Step 4: Simplify right side
    2,771.83x = 6,803,438.97
  5. Step 5: Solve for x
    x = 6,803,438.97/2,771.83
  6. Step 6: Final answer
    x = 2,454.49

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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.