Home / 671-926-395

Finding the Fourth Proportional to 671, 926 and 395

Calculator

Solution

The fourth proportional to 671, 926 and 395 is: 545.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    671 : 926 = 395 : x
  2. Step 2: Convert to fraction form
    671/926 = 395/x
  3. Step 3: Cross multiply
    671x = 926 × 395
  4. Step 4: Simplify right side
    671x = 365,770
  5. Step 5: Solve for x
    x = 365,770/671
  6. Step 6: Final answer
    x = 545.11

Related Problems

Find fourth proportional to 335.50, 463 and 197.50
Half scale
Find fourth proportional to 1,342, 1,852 and 790
Double scale
Find fourth proportional to 672, 927.38 and 396
Similar ratio
Find fourth proportional to 1,006.50, 1,389 and 592.50
1.5x scale

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.