Home / 793-1,189.86-451

Finding the Fourth Proportional to 793, 1,189.86 and 451

Calculator

Solution

The fourth proportional to 793, 1,189.86 and 451 is: 676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    793 : 1,189.86 = 451 : x
  2. Step 2: Convert to fraction form
    793/1,189.86 = 451/x
  3. Step 3: Cross multiply
    793x = 1,189.86 × 451
  4. Step 4: Simplify right side
    793x = 536,626.86
  5. Step 5: Solve for x
    x = 536,626.86/793
  6. Step 6: Final answer
    x = 676.70

Related Problems

Find fourth proportional to 396.50, 594.93 and 225.50
Half scale
Find fourth proportional to 1,586, 2,379.72 and 902
Double scale
Find fourth proportional to 794, 1,191.36 and 452
Similar ratio
Find fourth proportional to 1,189.50, 1,784.79 and 676.50
1.5x scale

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.