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Finding the Fourth Proportional to 2,090.04, 3,135.34 and 629

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Solution

The fourth proportional to 2,090.04, 3,135.34 and 629 is: 943.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.04 : 3,135.34 = 629 : x
  2. Step 2: Convert to fraction form
    2,090.04/3,135.34 = 629/x
  3. Step 3: Cross multiply
    2,090.04x = 3,135.34 × 629
  4. Step 4: Simplify right side
    2,090.04x = 1,972,128.86
  5. Step 5: Solve for x
    x = 1,972,128.86/2,090.04
  6. Step 6: Final answer
    x = 943.58

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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.