Home / 1,103.25-1,653.76-692.68

Finding the Fourth Proportional to 1,103.25, 1,653.76 and 692.68

Calculator

Solution

The fourth proportional to 1,103.25, 1,653.76 and 692.68 is: 1,038.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.25 : 1,653.76 = 692.68 : x
  2. Step 2: Convert to fraction form
    1,103.25/1,653.76 = 692.68/x
  3. Step 3: Cross multiply
    1,103.25x = 1,653.76 × 692.68
  4. Step 4: Simplify right side
    1,103.25x = 1,145,520.61
  5. Step 5: Solve for x
    x = 1,145,520.61/1,103.25
  6. Step 6: Final answer
    x = 1,038.31

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.