Home / 1,191.94-1,644.98-668.07

Finding the Fourth Proportional to 1,191.94, 1,644.98 and 668.07

Calculator

Solution

The fourth proportional to 1,191.94, 1,644.98 and 668.07 is: 921.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.94 : 1,644.98 = 668.07 : x
  2. Step 2: Convert to fraction form
    1,191.94/1,644.98 = 668.07/x
  3. Step 3: Cross multiply
    1,191.94x = 1,644.98 × 668.07
  4. Step 4: Simplify right side
    1,191.94x = 1,098,958.45
  5. Step 5: Solve for x
    x = 1,098,958.45/1,191.94
  6. Step 6: Final answer
    x = 921.99

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.