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Finding the Fourth Proportional to 4,859.78, 7,287.24 and 1,896.45

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Solution

The fourth proportional to 4,859.78, 7,287.24 and 1,896.45 is: 2,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,859.78 : 7,287.24 = 1,896.45 : x
  2. Step 2: Convert to fraction form
    4,859.78/7,287.24 = 1,896.45/x
  3. Step 3: Cross multiply
    4,859.78x = 7,287.24 × 1,896.45
  4. Step 4: Simplify right side
    4,859.78x = 13,819,879.75
  5. Step 5: Solve for x
    x = 13,819,879.75/4,859.78
  6. Step 6: Final answer
    x = 2,843.73

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1.5x scale

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.