Home / 2,090.63-3,135.96-629.79

Finding the Fourth Proportional to 2,090.63, 3,135.96 and 629.79

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Solution

The fourth proportional to 2,090.63, 3,135.96 and 629.79 is: 944.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.63 : 3,135.96 = 629.79 : x
  2. Step 2: Convert to fraction form
    2,090.63/3,135.96 = 629.79/x
  3. Step 3: Cross multiply
    2,090.63x = 3,135.96 × 629.79
  4. Step 4: Simplify right side
    2,090.63x = 1,974,996.25
  5. Step 5: Solve for x
    x = 1,974,996.25/2,090.63
  6. Step 6: Final answer
    x = 944.69

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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.