Home / 976.86-1,347.84-627.48

Finding the Fourth Proportional to 976.86, 1,347.84 and 627.48

Calculator

Solution

The fourth proportional to 976.86, 1,347.84 and 627.48 is: 865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.86 : 1,347.84 = 627.48 : x
  2. Step 2: Convert to fraction form
    976.86/1,347.84 = 627.48/x
  3. Step 3: Cross multiply
    976.86x = 1,347.84 × 627.48
  4. Step 4: Simplify right side
    976.86x = 845,742.64
  5. Step 5: Solve for x
    x = 845,742.64/976.86
  6. Step 6: Final answer
    x = 865.78

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.