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Finding the Fourth Proportional to 1,704.14, 2,556.32 and 454.72

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Solution

The fourth proportional to 1,704.14, 2,556.32 and 454.72 is: 682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.14 : 2,556.32 = 454.72 : x
  2. Step 2: Convert to fraction form
    1,704.14/2,556.32 = 454.72/x
  3. Step 3: Cross multiply
    1,704.14x = 2,556.32 × 454.72
  4. Step 4: Simplify right side
    1,704.14x = 1,162,409.83
  5. Step 5: Solve for x
    x = 1,162,409.83/1,704.14
  6. Step 6: Final answer
    x = 682.11

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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.