Home / 803.76-1,212.82-773.76

Finding the Fourth Proportional to 803.76, 1,212.82 and 773.76

Calculator

Solution

The fourth proportional to 803.76, 1,212.82 and 773.76 is: 1,167.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    803.76 : 1,212.82 = 773.76 : x
  2. Step 2: Convert to fraction form
    803.76/1,212.82 = 773.76/x
  3. Step 3: Cross multiply
    803.76x = 1,212.82 × 773.76
  4. Step 4: Simplify right side
    803.76x = 938,431.60
  5. Step 5: Solve for x
    x = 938,431.60/803.76
  6. Step 6: Final answer
    x = 1,167.55

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.