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Finding the Fourth Proportional to 1,602.93, 2,405.34 and 629.85

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Solution

The fourth proportional to 1,602.93, 2,405.34 and 629.85 is: 945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,602.93 : 2,405.34 = 629.85 : x
  2. Step 2: Convert to fraction form
    1,602.93/2,405.34 = 629.85/x
  3. Step 3: Cross multiply
    1,602.93x = 2,405.34 × 629.85
  4. Step 4: Simplify right side
    1,602.93x = 1,515,003.40
  5. Step 5: Solve for x
    x = 1,515,003.40/1,602.93
  6. Step 6: Final answer
    x = 945.15

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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.