Home / 7,212-10,818-1,740

Finding the Fourth Proportional to 7,212, 10,818 and 1,740

Calculator

Solution

The fourth proportional to 7,212, 10,818 and 1,740 is: 2,610

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212 : 10,818 = 1,740 : x
  2. Step 2: Convert to fraction form
    7,212/10,818 = 1,740/x
  3. Step 3: Cross multiply
    7,212x = 10,818 × 1,740
  4. Step 4: Simplify right side
    7,212x = 18,823,320
  5. Step 5: Solve for x
    x = 18,823,320/7,212
  6. Step 6: Final answer
    x = 2,610

Related Problems

Find fourth proportional to 3,606, 5,409 and 870
Half scale
Find fourth proportional to 14,424, 21,636 and 3,480
Double scale
Find fourth proportional to 7,213, 10,819.50 and 1,741
Similar ratio
Find fourth proportional to 10,818, 16,227 and 2,610
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.