Home / 7,442-11,163-1,970

Finding the Fourth Proportional to 7,442, 11,163 and 1,970

Calculator

Solution

The fourth proportional to 7,442, 11,163 and 1,970 is: 2,955

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442 : 11,163 = 1,970 : x
  2. Step 2: Convert to fraction form
    7,442/11,163 = 1,970/x
  3. Step 3: Cross multiply
    7,442x = 11,163 × 1,970
  4. Step 4: Simplify right side
    7,442x = 21,991,110
  5. Step 5: Solve for x
    x = 21,991,110/7,442
  6. Step 6: Final answer
    x = 2,955

Related Problems

Find fourth proportional to 3,721, 5,581.50 and 985
Half scale
Find fourth proportional to 14,884, 22,326 and 3,940
Double scale
Find fourth proportional to 7,443, 11,164.50 and 1,971
Similar ratio
Find fourth proportional to 11,163, 16,744.50 and 2,955
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.