Home / 1,992.19-2,749.23-1,108.00

Finding the Fourth Proportional to 1,992.19, 2,749.23 and 1,108.00

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Solution

The fourth proportional to 1,992.19, 2,749.23 and 1,108.00 is: 1,529.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.19 : 2,749.23 = 1,108.00 : x
  2. Step 2: Convert to fraction form
    1,992.19/2,749.23 = 1,108.00/x
  3. Step 3: Cross multiply
    1,992.19x = 2,749.23 × 1,108.00
  4. Step 4: Simplify right side
    1,992.19x = 3,046,139.97
  5. Step 5: Solve for x
    x = 3,046,139.97/1,992.19
  6. Step 6: Final answer
    x = 1,529.04

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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.