Home / 2,313.76-3,191.88-1,429.24

Finding the Fourth Proportional to 2,313.76, 3,191.88 and 1,429.24

Calculator

Solution

The fourth proportional to 2,313.76, 3,191.88 and 1,429.24 is: 1,971.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.76 : 3,191.88 = 1,429.24 : x
  2. Step 2: Convert to fraction form
    2,313.76/3,191.88 = 1,429.24/x
  3. Step 3: Cross multiply
    2,313.76x = 3,191.88 × 1,429.24
  4. Step 4: Simplify right side
    2,313.76x = 4,561,962.57
  5. Step 5: Solve for x
    x = 4,561,962.57/2,313.76
  6. Step 6: Final answer
    x = 1,971.67

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.