Home / 2,814.75-4,212.36-2,315.19

Finding the Fourth Proportional to 2,814.75, 4,212.36 and 2,315.19

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Solution

The fourth proportional to 2,814.75, 4,212.36 and 2,315.19 is: 3,464.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.75 : 4,212.36 = 2,315.19 : x
  2. Step 2: Convert to fraction form
    2,814.75/4,212.36 = 2,315.19/x
  3. Step 3: Cross multiply
    2,814.75x = 4,212.36 × 2,315.19
  4. Step 4: Simplify right side
    2,814.75x = 9,752,413.75
  5. Step 5: Solve for x
    x = 9,752,413.75/2,814.75
  6. Step 6: Final answer
    x = 3,464.75

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1.5x scale

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.