Home / 1,999.35-2,759.06-1,115.13

Finding the Fourth Proportional to 1,999.35, 2,759.06 and 1,115.13

Calculator

Solution

The fourth proportional to 1,999.35, 2,759.06 and 1,115.13 is: 1,538.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.35 : 2,759.06 = 1,115.13 : x
  2. Step 2: Convert to fraction form
    1,999.35/2,759.06 = 1,115.13/x
  3. Step 3: Cross multiply
    1,999.35x = 2,759.06 × 1,115.13
  4. Step 4: Simplify right side
    1,999.35x = 3,076,705.00
  5. Step 5: Solve for x
    x = 3,076,705.00/1,999.35
  6. Step 6: Final answer
    x = 1,538.85

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.