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Finding the Fourth Proportional to 1,683.41, 2,525.18 and 450.92

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Solution

The fourth proportional to 1,683.41, 2,525.18 and 450.92 is: 676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683.41 : 2,525.18 = 450.92 : x
  2. Step 2: Convert to fraction form
    1,683.41/2,525.18 = 450.92/x
  3. Step 3: Cross multiply
    1,683.41x = 2,525.18 × 450.92
  4. Step 4: Simplify right side
    1,683.41x = 1,138,658.22
  5. Step 5: Solve for x
    x = 1,138,658.22/1,683.41
  6. Step 6: Final answer
    x = 676.40

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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.