Home / 3,122.33-4,308.50-1,795.78

Finding the Fourth Proportional to 3,122.33, 4,308.50 and 1,795.78

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Solution

The fourth proportional to 3,122.33, 4,308.50 and 1,795.78 is: 2,477.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.33 : 4,308.50 = 1,795.78 : x
  2. Step 2: Convert to fraction form
    3,122.33/4,308.50 = 1,795.78/x
  3. Step 3: Cross multiply
    3,122.33x = 4,308.50 × 1,795.78
  4. Step 4: Simplify right side
    3,122.33x = 7,737,087.61
  5. Step 5: Solve for x
    x = 7,737,087.61/3,122.33
  6. Step 6: Final answer
    x = 2,477.99

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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.