Home / 2,090.96-3,135.44-629.80

Finding the Fourth Proportional to 2,090.96, 3,135.44 and 629.80

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Solution

The fourth proportional to 2,090.96, 3,135.44 and 629.80 is: 944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.96 : 3,135.44 = 629.80 : x
  2. Step 2: Convert to fraction form
    2,090.96/3,135.44 = 629.80/x
  3. Step 3: Cross multiply
    2,090.96x = 3,135.44 × 629.80
  4. Step 4: Simplify right side
    2,090.96x = 1,974,700.11
  5. Step 5: Solve for x
    x = 1,974,700.11/2,090.96
  6. Step 6: Final answer
    x = 944.40

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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.