Home / 960-1,440-352

Finding the Fourth Proportional to 960, 1,440 and 352

Calculator

Solution

The fourth proportional to 960, 1,440 and 352 is: 528

Step by Step Solution

  1. Step 1: Write the proportion equation
    960 : 1,440 = 352 : x
  2. Step 2: Convert to fraction form
    960/1,440 = 352/x
  3. Step 3: Cross multiply
    960x = 1,440 × 352
  4. Step 4: Simplify right side
    960x = 506,880
  5. Step 5: Solve for x
    x = 506,880/960
  6. Step 6: Final answer
    x = 528

Related Problems

Find fourth proportional to 480, 720 and 176
Half scale
Find fourth proportional to 1,920, 2,880 and 704
Double scale
Find fourth proportional to 961, 1,441.50 and 353
Similar ratio
Find fourth proportional to 1,440, 2,160 and 528
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.