Home / 1,469.28-2,028-879.84

Finding the Fourth Proportional to 1,469.28, 2,028 and 879.84

Calculator

Solution

The fourth proportional to 1,469.28, 2,028 and 879.84 is: 1,214.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.28 : 2,028 = 879.84 : x
  2. Step 2: Convert to fraction form
    1,469.28/2,028 = 879.84/x
  3. Step 3: Cross multiply
    1,469.28x = 2,028 × 879.84
  4. Step 4: Simplify right side
    1,469.28x = 1,784,315.52
  5. Step 5: Solve for x
    x = 1,784,315.52/1,469.28
  6. Step 6: Final answer
    x = 1,214.41

Related Problems

Find fourth proportional to 734.64, 1,014 and 439.92
Half scale
Find fourth proportional to 2,938.56, 4,056 and 1,759.68
Double scale
Find fourth proportional to 1,470.28, 2,029.38 and 880.84
Similar ratio
Find fourth proportional to 2,203.92, 3,042 and 1,319.76
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.