Home / 3,115.65-4,668.49-2,180.36

Finding the Fourth Proportional to 3,115.65, 4,668.49 and 2,180.36

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Solution

The fourth proportional to 3,115.65, 4,668.49 and 2,180.36 is: 3,267.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.65 : 4,668.49 = 2,180.36 : x
  2. Step 2: Convert to fraction form
    3,115.65/4,668.49 = 2,180.36/x
  3. Step 3: Cross multiply
    3,115.65x = 4,668.49 × 2,180.36
  4. Step 4: Simplify right side
    3,115.65x = 10,179,003.25
  5. Step 5: Solve for x
    x = 10,179,003.25/3,115.65
  6. Step 6: Final answer
    x = 3,267.06

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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.