Home / 803.10-1,107.19-662.70

Finding the Fourth Proportional to 803.10, 1,107.19 and 662.70

Calculator

Solution

The fourth proportional to 803.10, 1,107.19 and 662.70 is: 913.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    803.10 : 1,107.19 = 662.70 : x
  2. Step 2: Convert to fraction form
    803.10/1,107.19 = 662.70/x
  3. Step 3: Cross multiply
    803.10x = 1,107.19 × 662.70
  4. Step 4: Simplify right side
    803.10x = 733,734.81
  5. Step 5: Solve for x
    x = 733,734.81/803.10
  6. Step 6: Final answer
    x = 913.63

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.