Home / 1,905.86-2,629.56-1,119.62

Finding the Fourth Proportional to 1,905.86, 2,629.56 and 1,119.62

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Solution

The fourth proportional to 1,905.86, 2,629.56 and 1,119.62 is: 1,544.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.86 : 2,629.56 = 1,119.62 : x
  2. Step 2: Convert to fraction form
    1,905.86/2,629.56 = 1,119.62/x
  3. Step 3: Cross multiply
    1,905.86x = 2,629.56 × 1,119.62
  4. Step 4: Simplify right side
    1,905.86x = 2,944,107.97
  5. Step 5: Solve for x
    x = 2,944,107.97/1,905.86
  6. Step 6: Final answer
    x = 1,544.77

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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.