Home / 1,945.45-2,919.66-1,426.83

Finding the Fourth Proportional to 1,945.45, 2,919.66 and 1,426.83

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Solution

The fourth proportional to 1,945.45, 2,919.66 and 1,426.83 is: 2,141.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.45 : 2,919.66 = 1,426.83 : x
  2. Step 2: Convert to fraction form
    1,945.45/2,919.66 = 1,426.83/x
  3. Step 3: Cross multiply
    1,945.45x = 2,919.66 × 1,426.83
  4. Step 4: Simplify right side
    1,945.45x = 4,165,858.48
  5. Step 5: Solve for x
    x = 4,165,858.48/1,945.45
  6. Step 6: Final answer
    x = 2,141.33

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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.