Home / 951.44-1,312.16-636.72

Finding the Fourth Proportional to 951.44, 1,312.16 and 636.72

Calculator

Solution

The fourth proportional to 951.44, 1,312.16 and 636.72 is: 878.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.44 : 1,312.16 = 636.72 : x
  2. Step 2: Convert to fraction form
    951.44/1,312.16 = 636.72/x
  3. Step 3: Cross multiply
    951.44x = 1,312.16 × 636.72
  4. Step 4: Simplify right side
    951.44x = 835,478.52
  5. Step 5: Solve for x
    x = 835,478.52/951.44
  6. Step 6: Final answer
    x = 878.12

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.