Home / 3,695.28-5,100-2,124

Finding the Fourth Proportional to 3,695.28, 5,100 and 2,124

Calculator

Solution

The fourth proportional to 3,695.28, 5,100 and 2,124 is: 2,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,695.28 : 5,100 = 2,124 : x
  2. Step 2: Convert to fraction form
    3,695.28/5,100 = 2,124/x
  3. Step 3: Cross multiply
    3,695.28x = 5,100 × 2,124
  4. Step 4: Simplify right side
    3,695.28x = 10,832,400
  5. Step 5: Solve for x
    x = 10,832,400/3,695.28
  6. Step 6: Final answer
    x = 2,931.42

Related Problems

Find fourth proportional to 1,847.64, 2,550 and 1,062
Half scale
Find fourth proportional to 7,390.56, 10,200 and 4,248
Double scale
Find fourth proportional to 3,696.28, 5,101.38 and 2,125
Similar ratio
Find fourth proportional to 5,542.92, 7,650 and 3,186
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.