Home / 1,396.42-1,926.98-806.92

Finding the Fourth Proportional to 1,396.42, 1,926.98 and 806.92

Calculator

Solution

The fourth proportional to 1,396.42, 1,926.98 and 806.92 is: 1,113.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.42 : 1,926.98 = 806.92 : x
  2. Step 2: Convert to fraction form
    1,396.42/1,926.98 = 806.92/x
  3. Step 3: Cross multiply
    1,396.42x = 1,926.98 × 806.92
  4. Step 4: Simplify right side
    1,396.42x = 1,554,918.70
  5. Step 5: Solve for x
    x = 1,554,918.70/1,396.42
  6. Step 6: Final answer
    x = 1,113.50

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.