Home / 1,451.50-2,004-920.62

Finding the Fourth Proportional to 1,451.50, 2,004 and 920.62

Calculator

Solution

The fourth proportional to 1,451.50, 2,004 and 920.62 is: 1,271.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.50 : 2,004 = 920.62 : x
  2. Step 2: Convert to fraction form
    1,451.50/2,004 = 920.62/x
  3. Step 3: Cross multiply
    1,451.50x = 2,004 × 920.62
  4. Step 4: Simplify right side
    1,451.50x = 1,844,922.48
  5. Step 5: Solve for x
    x = 1,844,922.48/1,451.50
  6. Step 6: Final answer
    x = 1,271.05

Related Problems

Find fourth proportional to 725.75, 1,002 and 460.31
Half scale
Find fourth proportional to 2,903, 4,008 and 1,841.24
Double scale
Find fourth proportional to 1,452.50, 2,005.38 and 921.62
Similar ratio
Find fourth proportional to 2,177.25, 3,006 and 1,380.93
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.