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Finding the Fourth Proportional to 3,357.76, 5,040.96 and 1,819.84

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Solution

The fourth proportional to 3,357.76, 5,040.96 and 1,819.84 is: 2,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357.76 : 5,040.96 = 1,819.84 : x
  2. Step 2: Convert to fraction form
    3,357.76/5,040.96 = 1,819.84/x
  3. Step 3: Cross multiply
    3,357.76x = 5,040.96 × 1,819.84
  4. Step 4: Simplify right side
    3,357.76x = 9,173,740.65
  5. Step 5: Solve for x
    x = 9,173,740.65/3,357.76
  6. Step 6: Final answer
    x = 2,732.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.