Home / 1,993.07-2,749.92-1,206.96

Finding the Fourth Proportional to 1,993.07, 2,749.92 and 1,206.96

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Solution

The fourth proportional to 1,993.07, 2,749.92 and 1,206.96 is: 1,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993.07 : 2,749.92 = 1,206.96 : x
  2. Step 2: Convert to fraction form
    1,993.07/2,749.92 = 1,206.96/x
  3. Step 3: Cross multiply
    1,993.07x = 2,749.92 × 1,206.96
  4. Step 4: Simplify right side
    1,993.07x = 3,319,043.44
  5. Step 5: Solve for x
    x = 3,319,043.44/1,993.07
  6. Step 6: Final answer
    x = 1,665.30

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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.