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Finding the Fourth Proportional to 1,768.34, 2,644.07 and 1,613.42

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Solution

The fourth proportional to 1,768.34, 2,644.07 and 1,613.42 is: 2,412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.34 : 2,644.07 = 1,613.42 : x
  2. Step 2: Convert to fraction form
    1,768.34/2,644.07 = 1,613.42/x
  3. Step 3: Cross multiply
    1,768.34x = 2,644.07 × 1,613.42
  4. Step 4: Simplify right side
    1,768.34x = 4,265,995.42
  5. Step 5: Solve for x
    x = 4,265,995.42/1,768.34
  6. Step 6: Final answer
    x = 2,412.43

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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.