Home / 1,971.34-2,720.08-1,185.40

Finding the Fourth Proportional to 1,971.34, 2,720.08 and 1,185.40

Calculator

Solution

The fourth proportional to 1,971.34, 2,720.08 and 1,185.40 is: 1,635.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.34 : 2,720.08 = 1,185.40 : x
  2. Step 2: Convert to fraction form
    1,971.34/2,720.08 = 1,185.40/x
  3. Step 3: Cross multiply
    1,971.34x = 2,720.08 × 1,185.40
  4. Step 4: Simplify right side
    1,971.34x = 3,224,382.83
  5. Step 5: Solve for x
    x = 3,224,382.83/1,971.34
  6. Step 6: Final answer
    x = 1,635.63

Related Problems

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.