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Finding the Fourth Proportional to 1,683.45, 2,525.06 and 450.83

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Solution

The fourth proportional to 1,683.45, 2,525.06 and 450.83 is: 676.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683.45 : 2,525.06 = 450.83 : x
  2. Step 2: Convert to fraction form
    1,683.45/2,525.06 = 450.83/x
  3. Step 3: Cross multiply
    1,683.45x = 2,525.06 × 450.83
  4. Step 4: Simplify right side
    1,683.45x = 1,138,380.24
  5. Step 5: Solve for x
    x = 1,138,380.24/1,683.45
  6. Step 6: Final answer
    x = 676.22

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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.