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Finding the Fourth Proportional to 1,899.06, 2,850.06 and 1,318.14

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Solution

The fourth proportional to 1,899.06, 2,850.06 and 1,318.14 is: 1,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.06 : 2,850.06 = 1,318.14 : x
  2. Step 2: Convert to fraction form
    1,899.06/2,850.06 = 1,318.14/x
  3. Step 3: Cross multiply
    1,899.06x = 2,850.06 × 1,318.14
  4. Step 4: Simplify right side
    1,899.06x = 3,756,778.09
  5. Step 5: Solve for x
    x = 3,756,778.09/1,899.06
  6. Step 6: Final answer
    x = 1,978.23

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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.