Home / 3,222.78-4,448.01-1,896.40

Finding the Fourth Proportional to 3,222.78, 4,448.01 and 1,896.40

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Solution

The fourth proportional to 3,222.78, 4,448.01 and 1,896.40 is: 2,617.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.78 : 4,448.01 = 1,896.40 : x
  2. Step 2: Convert to fraction form
    3,222.78/4,448.01 = 1,896.40/x
  3. Step 3: Cross multiply
    3,222.78x = 4,448.01 × 1,896.40
  4. Step 4: Simplify right side
    3,222.78x = 8,435,206.16
  5. Step 5: Solve for x
    x = 8,435,206.16/3,222.78
  6. Step 6: Final answer
    x = 2,617.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.