Home / 2,116.18-2,920.44-1,172.07

Finding the Fourth Proportional to 2,116.18, 2,920.44 and 1,172.07

Calculator

Solution

The fourth proportional to 2,116.18, 2,920.44 and 1,172.07 is: 1,617.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.18 : 2,920.44 = 1,172.07 : x
  2. Step 2: Convert to fraction form
    2,116.18/2,920.44 = 1,172.07/x
  3. Step 3: Cross multiply
    2,116.18x = 2,920.44 × 1,172.07
  4. Step 4: Simplify right side
    2,116.18x = 3,422,970.23
  5. Step 5: Solve for x
    x = 3,422,970.23/2,116.18
  6. Step 6: Final answer
    x = 1,617.52

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.