Home / 7,584.78-11,356.16-3,879.02

Finding the Fourth Proportional to 7,584.78, 11,356.16 and 3,879.02

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Solution

The fourth proportional to 7,584.78, 11,356.16 and 3,879.02 is: 5,807.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,584.78 : 11,356.16 = 3,879.02 : x
  2. Step 2: Convert to fraction form
    7,584.78/11,356.16 = 3,879.02/x
  3. Step 3: Cross multiply
    7,584.78x = 11,356.16 × 3,879.02
  4. Step 4: Simplify right side
    7,584.78x = 44,050,771.76
  5. Step 5: Solve for x
    x = 44,050,771.76/7,584.78
  6. Step 6: Final answer
    x = 5,807.79

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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.