Home / 4,747.96-7,121.94-1,285.21

Finding the Fourth Proportional to 4,747.96, 7,121.94 and 1,285.21

Calculator

Solution

The fourth proportional to 4,747.96, 7,121.94 and 1,285.21 is: 1,927.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.96 : 7,121.94 = 1,285.21 : x
  2. Step 2: Convert to fraction form
    4,747.96/7,121.94 = 1,285.21/x
  3. Step 3: Cross multiply
    4,747.96x = 7,121.94 × 1,285.21
  4. Step 4: Simplify right side
    4,747.96x = 9,153,188.51
  5. Step 5: Solve for x
    x = 9,153,188.51/4,747.96
  6. Step 6: Final answer
    x = 1,927.82

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.