Home / 1,905.67-2,629.42-1,119.43

Finding the Fourth Proportional to 1,905.67, 2,629.42 and 1,119.43

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Solution

The fourth proportional to 1,905.67, 2,629.42 and 1,119.43 is: 1,544.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.67 : 2,629.42 = 1,119.43 : x
  2. Step 2: Convert to fraction form
    1,905.67/2,629.42 = 1,119.43/x
  3. Step 3: Cross multiply
    1,905.67x = 2,629.42 × 1,119.43
  4. Step 4: Simplify right side
    1,905.67x = 2,943,451.63
  5. Step 5: Solve for x
    x = 2,943,451.63/1,905.67
  6. Step 6: Final answer
    x = 1,544.58

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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.