Home / 2,090.81-3,136.32-629.98

Finding the Fourth Proportional to 2,090.81, 3,136.32 and 629.98

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Solution

The fourth proportional to 2,090.81, 3,136.32 and 629.98 is: 945.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.81 : 3,136.32 = 629.98 : x
  2. Step 2: Convert to fraction form
    2,090.81/3,136.32 = 629.98/x
  3. Step 3: Cross multiply
    2,090.81x = 3,136.32 × 629.98
  4. Step 4: Simplify right side
    2,090.81x = 1,975,811.03
  5. Step 5: Solve for x
    x = 1,975,811.03/2,090.81
  6. Step 6: Final answer
    x = 945.00

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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.