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Finding the Fourth Proportional to 1,859.77, 2,789.75 and 1,338.33

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Solution

The fourth proportional to 1,859.77, 2,789.75 and 1,338.33 is: 2,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.77 : 2,789.75 = 1,338.33 : x
  2. Step 2: Convert to fraction form
    1,859.77/2,789.75 = 1,338.33/x
  3. Step 3: Cross multiply
    1,859.77x = 2,789.75 × 1,338.33
  4. Step 4: Simplify right side
    1,859.77x = 3,733,606.12
  5. Step 5: Solve for x
    x = 3,733,606.12/1,859.77
  6. Step 6: Final answer
    x = 2,007.56

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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.