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Finding the Fourth Proportional to 3,380.74, 5,071.02 and 1,899.96

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Solution

The fourth proportional to 3,380.74, 5,071.02 and 1,899.96 is: 2,849.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.74 : 5,071.02 = 1,899.96 : x
  2. Step 2: Convert to fraction form
    3,380.74/5,071.02 = 1,899.96/x
  3. Step 3: Cross multiply
    3,380.74x = 5,071.02 × 1,899.96
  4. Step 4: Simplify right side
    3,380.74x = 9,634,735.16
  5. Step 5: Solve for x
    x = 9,634,735.16/3,380.74
  6. Step 6: Final answer
    x = 2,849.89

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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.