Home / 2,080.16-3,120.76-619.28

Finding the Fourth Proportional to 2,080.16, 3,120.76 and 619.28

Calculator

Solution

The fourth proportional to 2,080.16, 3,120.76 and 619.28 is: 929.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.16 : 3,120.76 = 619.28 : x
  2. Step 2: Convert to fraction form
    2,080.16/3,120.76 = 619.28/x
  3. Step 3: Cross multiply
    2,080.16x = 3,120.76 × 619.28
  4. Step 4: Simplify right side
    2,080.16x = 1,932,624.25
  5. Step 5: Solve for x
    x = 1,932,624.25/2,080.16
  6. Step 6: Final answer
    x = 929.07

Related Problems

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.