Home / 1,181.14-1,631.00-739.80

Finding the Fourth Proportional to 1,181.14, 1,631.00 and 739.80

Calculator

Solution

The fourth proportional to 1,181.14, 1,631.00 and 739.80 is: 1,021.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.14 : 1,631.00 = 739.80 : x
  2. Step 2: Convert to fraction form
    1,181.14/1,631.00 = 739.80/x
  3. Step 3: Cross multiply
    1,181.14x = 1,631.00 × 739.80
  4. Step 4: Simplify right side
    1,181.14x = 1,206,615.65
  5. Step 5: Solve for x
    x = 1,206,615.65/1,181.14
  6. Step 6: Final answer
    x = 1,021.57

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.