Home / 2,100.00-3,150.52-867.76

Finding the Fourth Proportional to 2,100.00, 3,150.52 and 867.76

Calculator

Solution

The fourth proportional to 2,100.00, 3,150.52 and 867.76 is: 1,301.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100.00 : 3,150.52 = 867.76 : x
  2. Step 2: Convert to fraction form
    2,100.00/3,150.52 = 867.76/x
  3. Step 3: Cross multiply
    2,100.00x = 3,150.52 × 867.76
  4. Step 4: Simplify right side
    2,100.00x = 2,733,905.35
  5. Step 5: Solve for x
    x = 2,733,905.35/2,100.00
  6. Step 6: Final answer
    x = 1,301.86

Related Problems

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.