Home / 3,121.73-4,308.24-1,795.87

Finding the Fourth Proportional to 3,121.73, 4,308.24 and 1,795.87

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Solution

The fourth proportional to 3,121.73, 4,308.24 and 1,795.87 is: 2,478.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.73 : 4,308.24 = 1,795.87 : x
  2. Step 2: Convert to fraction form
    3,121.73/4,308.24 = 1,795.87/x
  3. Step 3: Cross multiply
    3,121.73x = 4,308.24 × 1,795.87
  4. Step 4: Simplify right side
    3,121.73x = 7,737,017.43
  5. Step 5: Solve for x
    x = 7,737,017.43/3,121.73
  6. Step 6: Final answer
    x = 2,478.44

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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.