Home / 3,115.26-4,675.62-2,628.65

Finding the Fourth Proportional to 3,115.26, 4,675.62 and 2,628.65

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Solution

The fourth proportional to 3,115.26, 4,675.62 and 2,628.65 is: 3,945.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.26 : 4,675.62 = 2,628.65 : x
  2. Step 2: Convert to fraction form
    3,115.26/4,675.62 = 2,628.65/x
  3. Step 3: Cross multiply
    3,115.26x = 4,675.62 × 2,628.65
  4. Step 4: Simplify right side
    3,115.26x = 12,290,590.06
  5. Step 5: Solve for x
    x = 12,290,590.06/3,115.26
  6. Step 6: Final answer
    x = 3,945.29

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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.