Home / 3,902.33-5,382.86-2,908.60

Finding the Fourth Proportional to 3,902.33, 5,382.86 and 2,908.60

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Solution

The fourth proportional to 3,902.33, 5,382.86 and 2,908.60 is: 4,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.33 : 5,382.86 = 2,908.60 : x
  2. Step 2: Convert to fraction form
    3,902.33/5,382.86 = 2,908.60/x
  3. Step 3: Cross multiply
    3,902.33x = 5,382.86 × 2,908.60
  4. Step 4: Simplify right side
    3,902.33x = 15,656,558.60
  5. Step 5: Solve for x
    x = 15,656,558.60/3,902.33
  6. Step 6: Final answer
    x = 4,012.10

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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.