Home / 1,939.09-2,675.92-1,054.87

Finding the Fourth Proportional to 1,939.09, 2,675.92 and 1,054.87

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Solution

The fourth proportional to 1,939.09, 2,675.92 and 1,054.87 is: 1,455.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.09 : 2,675.92 = 1,054.87 : x
  2. Step 2: Convert to fraction form
    1,939.09/2,675.92 = 1,054.87/x
  3. Step 3: Cross multiply
    1,939.09x = 2,675.92 × 1,054.87
  4. Step 4: Simplify right side
    1,939.09x = 2,822,747.73
  5. Step 5: Solve for x
    x = 2,822,747.73/1,939.09
  6. Step 6: Final answer
    x = 1,455.71

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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.