Home / 2,090.54-3,135.80-629.81

Finding the Fourth Proportional to 2,090.54, 3,135.80 and 629.81

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Solution

The fourth proportional to 2,090.54, 3,135.80 and 629.81 is: 944.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.54 : 3,135.80 = 629.81 : x
  2. Step 2: Convert to fraction form
    2,090.54/3,135.80 = 629.81/x
  3. Step 3: Cross multiply
    2,090.54x = 3,135.80 × 629.81
  4. Step 4: Simplify right side
    2,090.54x = 1,974,939.37
  5. Step 5: Solve for x
    x = 1,974,939.37/2,090.54
  6. Step 6: Final answer
    x = 944.71

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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.