Home / 3,620.94-5,428.33-3,448.71

Finding the Fourth Proportional to 3,620.94, 5,428.33 and 3,448.71

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Solution

The fourth proportional to 3,620.94, 5,428.33 and 3,448.71 is: 5,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.94 : 5,428.33 = 3,448.71 : x
  2. Step 2: Convert to fraction form
    3,620.94/5,428.33 = 3,448.71/x
  3. Step 3: Cross multiply
    3,620.94x = 5,428.33 × 3,448.71
  4. Step 4: Simplify right side
    3,620.94x = 18,720,727.33
  5. Step 5: Solve for x
    x = 18,720,727.33/3,620.94
  6. Step 6: Final answer
    x = 5,170.13

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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.