Home / 7,680.07-11,519.70-2,485.54

Finding the Fourth Proportional to 7,680.07, 11,519.70 and 2,485.54

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Solution

The fourth proportional to 7,680.07, 11,519.70 and 2,485.54 is: 3,728.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.07 : 11,519.70 = 2,485.54 : x
  2. Step 2: Convert to fraction form
    7,680.07/11,519.70 = 2,485.54/x
  3. Step 3: Cross multiply
    7,680.07x = 11,519.70 × 2,485.54
  4. Step 4: Simplify right side
    7,680.07x = 28,632,675.14
  5. Step 5: Solve for x
    x = 28,632,675.14/7,680.07
  6. Step 6: Final answer
    x = 3,728.18

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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.