Home / 1,640.21-2,262.21-1,050.80

Finding the Fourth Proportional to 1,640.21, 2,262.21 and 1,050.80

Calculator

Solution

The fourth proportional to 1,640.21, 2,262.21 and 1,050.80 is: 1,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.21 : 2,262.21 = 1,050.80 : x
  2. Step 2: Convert to fraction form
    1,640.21/2,262.21 = 1,050.80/x
  3. Step 3: Cross multiply
    1,640.21x = 2,262.21 × 1,050.80
  4. Step 4: Simplify right side
    1,640.21x = 2,377,130.27
  5. Step 5: Solve for x
    x = 2,377,130.27/1,640.21
  6. Step 6: Final answer
    x = 1,449.28

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.