Home / 1,394.23-2,091.44-469.79

Finding the Fourth Proportional to 1,394.23, 2,091.44 and 469.79

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Solution

The fourth proportional to 1,394.23, 2,091.44 and 469.79 is: 704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.23 : 2,091.44 = 469.79 : x
  2. Step 2: Convert to fraction form
    1,394.23/2,091.44 = 469.79/x
  3. Step 3: Cross multiply
    1,394.23x = 2,091.44 × 469.79
  4. Step 4: Simplify right side
    1,394.23x = 982,528.31
  5. Step 5: Solve for x
    x = 982,528.31/1,394.23
  6. Step 6: Final answer
    x = 704.71

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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.