Home / 1,329.31-1,995.00-919.05

Finding the Fourth Proportional to 1,329.31, 1,995.00 and 919.05

Calculator

Solution

The fourth proportional to 1,329.31, 1,995.00 and 919.05 is: 1,379.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.31 : 1,995.00 = 919.05 : x
  2. Step 2: Convert to fraction form
    1,329.31/1,995.00 = 919.05/x
  3. Step 3: Cross multiply
    1,329.31x = 1,995.00 × 919.05
  4. Step 4: Simplify right side
    1,329.31x = 1,833,493.82
  5. Step 5: Solve for x
    x = 1,833,493.82/1,329.31
  6. Step 6: Final answer
    x = 1,379.28

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.