Home / 2,502-3,753-678

Finding the Fourth Proportional to 2,502, 3,753 and 678

Calculator

Solution

The fourth proportional to 2,502, 3,753 and 678 is: 1,017

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,502 : 3,753 = 678 : x
  2. Step 2: Convert to fraction form
    2,502/3,753 = 678/x
  3. Step 3: Cross multiply
    2,502x = 3,753 × 678
  4. Step 4: Simplify right side
    2,502x = 2,544,534
  5. Step 5: Solve for x
    x = 2,544,534/2,502
  6. Step 6: Final answer
    x = 1,017

Related Problems

Find fourth proportional to 1,251, 1,876.50 and 339
Half scale
Find fourth proportional to 5,004, 7,506 and 1,356
Double scale
Find fourth proportional to 2,503, 3,754.50 and 679
Similar ratio
Find fourth proportional to 3,753, 5,629.50 and 1,017
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.