Home / 2,012.78-3,019.31-551.95

Finding the Fourth Proportional to 2,012.78, 3,019.31 and 551.95

Calculator

Solution

The fourth proportional to 2,012.78, 3,019.31 and 551.95 is: 827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.78 : 3,019.31 = 551.95 : x
  2. Step 2: Convert to fraction form
    2,012.78/3,019.31 = 551.95/x
  3. Step 3: Cross multiply
    2,012.78x = 3,019.31 × 551.95
  4. Step 4: Simplify right side
    2,012.78x = 1,666,499.92
  5. Step 5: Solve for x
    x = 1,666,499.92/2,012.78
  6. Step 6: Final answer
    x = 827.96

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.