Home / 2,090.37-3,134.55-629.13

Finding the Fourth Proportional to 2,090.37, 3,134.55 and 629.13

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Solution

The fourth proportional to 2,090.37, 3,134.55 and 629.13 is: 943.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.37 : 3,134.55 = 629.13 : x
  2. Step 2: Convert to fraction form
    2,090.37/3,134.55 = 629.13/x
  3. Step 3: Cross multiply
    2,090.37x = 3,134.55 × 629.13
  4. Step 4: Simplify right side
    2,090.37x = 1,972,039.44
  5. Step 5: Solve for x
    x = 1,972,039.44/2,090.37
  6. Step 6: Final answer
    x = 943.39

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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.