Home / 2,439.01-3,661.27-979.19

Finding the Fourth Proportional to 2,439.01, 3,661.27 and 979.19

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Solution

The fourth proportional to 2,439.01, 3,661.27 and 979.19 is: 1,469.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.01 : 3,661.27 = 979.19 : x
  2. Step 2: Convert to fraction form
    2,439.01/3,661.27 = 979.19/x
  3. Step 3: Cross multiply
    2,439.01x = 3,661.27 × 979.19
  4. Step 4: Simplify right side
    2,439.01x = 3,585,071.95
  5. Step 5: Solve for x
    x = 3,585,071.95/2,439.01
  6. Step 6: Final answer
    x = 1,469.89

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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.