Home / 1,899.45-2,618.33-1,338.32

Finding the Fourth Proportional to 1,899.45, 2,618.33 and 1,338.32

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Solution

The fourth proportional to 1,899.45, 2,618.33 and 1,338.32 is: 1,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.45 : 2,618.33 = 1,338.32 : x
  2. Step 2: Convert to fraction form
    1,899.45/2,618.33 = 1,338.32/x
  3. Step 3: Cross multiply
    1,899.45x = 2,618.33 × 1,338.32
  4. Step 4: Simplify right side
    1,899.45x = 3,504,163.26
  5. Step 5: Solve for x
    x = 3,504,163.26/1,899.45
  6. Step 6: Final answer
    x = 1,844.83

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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.