Home / 7,113.56-10,668.38-2,180.46

Finding the Fourth Proportional to 7,113.56, 10,668.38 and 2,180.46

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Solution

The fourth proportional to 7,113.56, 10,668.38 and 2,180.46 is: 3,270.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.56 : 10,668.38 = 2,180.46 : x
  2. Step 2: Convert to fraction form
    7,113.56/10,668.38 = 2,180.46/x
  3. Step 3: Cross multiply
    7,113.56x = 10,668.38 × 2,180.46
  4. Step 4: Simplify right side
    7,113.56x = 23,261,975.85
  5. Step 5: Solve for x
    x = 23,261,975.85/7,113.56
  6. Step 6: Final answer
    x = 3,270.09

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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.