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Finding the Fourth Proportional to 2,090.88, 3,135.87 and 629.73

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Solution

The fourth proportional to 2,090.88, 3,135.87 and 629.73 is: 944.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.88 : 3,135.87 = 629.73 : x
  2. Step 2: Convert to fraction form
    2,090.88/3,135.87 = 629.73/x
  3. Step 3: Cross multiply
    2,090.88x = 3,135.87 × 629.73
  4. Step 4: Simplify right side
    2,090.88x = 1,974,751.42
  5. Step 5: Solve for x
    x = 1,974,751.42/2,090.88
  6. Step 6: Final answer
    x = 944.46

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1.5x scale

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.