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Finding the Fourth Proportional to 2,883.76, 3,979 and 1,704.64

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Solution

The fourth proportional to 2,883.76, 3,979 and 1,704.64 is: 2,352.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.76 : 3,979 = 1,704.64 : x
  2. Step 2: Convert to fraction form
    2,883.76/3,979 = 1,704.64/x
  3. Step 3: Cross multiply
    2,883.76x = 3,979 × 1,704.64
  4. Step 4: Simplify right side
    2,883.76x = 6,782,762.56
  5. Step 5: Solve for x
    x = 6,782,762.56/2,883.76
  6. Step 6: Final answer
    x = 2,352.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.