Home / 2,828.10-4,241.34-979.14

Finding the Fourth Proportional to 2,828.10, 4,241.34 and 979.14

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Solution

The fourth proportional to 2,828.10, 4,241.34 and 979.14 is: 1,468.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.10 : 4,241.34 = 979.14 : x
  2. Step 2: Convert to fraction form
    2,828.10/4,241.34 = 979.14/x
  3. Step 3: Cross multiply
    2,828.10x = 4,241.34 × 979.14
  4. Step 4: Simplify right side
    2,828.10x = 4,152,865.65
  5. Step 5: Solve for x
    x = 4,152,865.65/2,828.10
  6. Step 6: Final answer
    x = 1,468.43

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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.