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Finding the Fourth Proportional to 1,609.66, 2,414.63 and 455.41

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Solution

The fourth proportional to 1,609.66, 2,414.63 and 455.41 is: 683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.66 : 2,414.63 = 455.41 : x
  2. Step 2: Convert to fraction form
    1,609.66/2,414.63 = 455.41/x
  3. Step 3: Cross multiply
    1,609.66x = 2,414.63 × 455.41
  4. Step 4: Simplify right side
    1,609.66x = 1,099,638.33
  5. Step 5: Solve for x
    x = 1,099,638.33/1,609.66
  6. Step 6: Final answer
    x = 683.15

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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.