Home / 3,177.82-4,785.37-2,771.81

Finding the Fourth Proportional to 3,177.82, 4,785.37 and 2,771.81

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Solution

The fourth proportional to 3,177.82, 4,785.37 and 2,771.81 is: 4,173.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.82 : 4,785.37 = 2,771.81 : x
  2. Step 2: Convert to fraction form
    3,177.82/4,785.37 = 2,771.81/x
  3. Step 3: Cross multiply
    3,177.82x = 4,785.37 × 2,771.81
  4. Step 4: Simplify right side
    3,177.82x = 13,264,136.42
  5. Step 5: Solve for x
    x = 13,264,136.42/3,177.82
  6. Step 6: Final answer
    x = 4,173.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.