Home / 885-1,328.04-372

Finding the Fourth Proportional to 885, 1,328.04 and 372

Calculator

Solution

The fourth proportional to 885, 1,328.04 and 372 is: 558.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    885 : 1,328.04 = 372 : x
  2. Step 2: Convert to fraction form
    885/1,328.04 = 372/x
  3. Step 3: Cross multiply
    885x = 1,328.04 × 372
  4. Step 4: Simplify right side
    885x = 494,030.88
  5. Step 5: Solve for x
    x = 494,030.88/885
  6. Step 6: Final answer
    x = 558.23

Related Problems

Find fourth proportional to 442.50, 664.02 and 186
Half scale
Find fourth proportional to 1,770, 2,656.08 and 744
Double scale
Find fourth proportional to 886, 1,329.54 and 373
Similar ratio
Find fourth proportional to 1,327.50, 1,992.06 and 558
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.