Home / 1,979.82-2,969.19-1,004.58

Finding the Fourth Proportional to 1,979.82, 2,969.19 and 1,004.58

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Solution

The fourth proportional to 1,979.82, 2,969.19 and 1,004.58 is: 1,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.82 : 2,969.19 = 1,004.58 : x
  2. Step 2: Convert to fraction form
    1,979.82/2,969.19 = 1,004.58/x
  3. Step 3: Cross multiply
    1,979.82x = 2,969.19 × 1,004.58
  4. Step 4: Simplify right side
    1,979.82x = 2,982,788.89
  5. Step 5: Solve for x
    x = 2,982,788.89/1,979.82
  6. Step 6: Final answer
    x = 1,506.60

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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.