Home / 1,328.24-1,832-885.92

Finding the Fourth Proportional to 1,328.24, 1,832 and 885.92

Calculator

Solution

The fourth proportional to 1,328.24, 1,832 and 885.92 is: 1,221.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328.24 : 1,832 = 885.92 : x
  2. Step 2: Convert to fraction form
    1,328.24/1,832 = 885.92/x
  3. Step 3: Cross multiply
    1,328.24x = 1,832 × 885.92
  4. Step 4: Simplify right side
    1,328.24x = 1,623,005.44
  5. Step 5: Solve for x
    x = 1,623,005.44/1,328.24
  6. Step 6: Final answer
    x = 1,221.92

Related Problems

Find fourth proportional to 664.12, 916 and 442.96
Half scale
Find fourth proportional to 2,656.48, 3,664 and 1,771.84
Double scale
Find fourth proportional to 1,329.24, 1,833.38 and 886.92
Similar ratio
Find fourth proportional to 1,992.36, 2,748 and 1,328.88
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.