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Finding the Fourth Proportional to 3,123.33, 4,309.88 and 1,796.78

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Solution

The fourth proportional to 3,123.33, 4,309.88 and 1,796.78 is: 2,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.33 : 4,309.88 = 1,796.78 : x
  2. Step 2: Convert to fraction form
    3,123.33/4,309.88 = 1,796.78/x
  3. Step 3: Cross multiply
    3,123.33x = 4,309.88 × 1,796.78
  4. Step 4: Simplify right side
    3,123.33x = 7,743,875.65
  5. Step 5: Solve for x
    x = 7,743,875.65/3,123.33
  6. Step 6: Final answer
    x = 2,479.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.