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Finding the Fourth Proportional to 1,704.64, 2,556.78 and 608.98

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Solution

The fourth proportional to 1,704.64, 2,556.78 and 608.98 is: 913.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.64 : 2,556.78 = 608.98 : x
  2. Step 2: Convert to fraction form
    1,704.64/2,556.78 = 608.98/x
  3. Step 3: Cross multiply
    1,704.64x = 2,556.78 × 608.98
  4. Step 4: Simplify right side
    1,704.64x = 1,557,027.88
  5. Step 5: Solve for x
    x = 1,557,027.88/1,704.64
  6. Step 6: Final answer
    x = 913.41

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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.