Home / 1,413.92-2,121.58-634.45

Finding the Fourth Proportional to 1,413.92, 2,121.58 and 634.45

Calculator

Solution

The fourth proportional to 1,413.92, 2,121.58 and 634.45 is: 951.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.92 : 2,121.58 = 634.45 : x
  2. Step 2: Convert to fraction form
    1,413.92/2,121.58 = 634.45/x
  3. Step 3: Cross multiply
    1,413.92x = 2,121.58 × 634.45
  4. Step 4: Simplify right side
    1,413.92x = 1,346,025.82
  5. Step 5: Solve for x
    x = 1,346,025.82/1,413.92
  6. Step 6: Final answer
    x = 951.98

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.