Home / 7,791.50-11,680.32-2,860.00

Finding the Fourth Proportional to 7,791.50, 11,680.32 and 2,860.00

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Solution

The fourth proportional to 7,791.50, 11,680.32 and 2,860.00 is: 4,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.50 : 11,680.32 = 2,860.00 : x
  2. Step 2: Convert to fraction form
    7,791.50/11,680.32 = 2,860.00/x
  3. Step 3: Cross multiply
    7,791.50x = 11,680.32 × 2,860.00
  4. Step 4: Simplify right side
    7,791.50x = 33,405,693.45
  5. Step 5: Solve for x
    x = 33,405,693.45/7,791.50
  6. Step 6: Final answer
    x = 4,287.45

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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.