Home / 2,215.69-3,324.75-829.99

Finding the Fourth Proportional to 2,215.69, 3,324.75 and 829.99

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Solution

The fourth proportional to 2,215.69, 3,324.75 and 829.99 is: 1,245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.69 : 3,324.75 = 829.99 : x
  2. Step 2: Convert to fraction form
    2,215.69/3,324.75 = 829.99/x
  3. Step 3: Cross multiply
    2,215.69x = 3,324.75 × 829.99
  4. Step 4: Simplify right side
    2,215.69x = 2,759,509.25
  5. Step 5: Solve for x
    x = 2,759,509.25/2,215.69
  6. Step 6: Final answer
    x = 1,245.44

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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.