Home / 1,848-2,772-480

Finding the Fourth Proportional to 1,848, 2,772 and 480

Calculator

Solution

The fourth proportional to 1,848, 2,772 and 480 is: 720

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848 : 2,772 = 480 : x
  2. Step 2: Convert to fraction form
    1,848/2,772 = 480/x
  3. Step 3: Cross multiply
    1,848x = 2,772 × 480
  4. Step 4: Simplify right side
    1,848x = 1,330,560
  5. Step 5: Solve for x
    x = 1,330,560/1,848
  6. Step 6: Final answer
    x = 720

Related Problems

Find fourth proportional to 924, 1,386 and 240
Half scale
Find fourth proportional to 3,696, 5,544 and 960
Double scale
Find fourth proportional to 1,849, 2,773.50 and 481
Similar ratio
Find fourth proportional to 2,772, 4,158 and 720
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.