Home / 3,908.01-5,391.45-2,858.25

Finding the Fourth Proportional to 3,908.01, 5,391.45 and 2,858.25

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Solution

The fourth proportional to 3,908.01, 5,391.45 and 2,858.25 is: 3,943.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.01 : 5,391.45 = 2,858.25 : x
  2. Step 2: Convert to fraction form
    3,908.01/5,391.45 = 2,858.25/x
  3. Step 3: Cross multiply
    3,908.01x = 5,391.45 × 2,858.25
  4. Step 4: Simplify right side
    3,908.01x = 15,410,111.96
  5. Step 5: Solve for x
    x = 15,410,111.96/3,908.01
  6. Step 6: Final answer
    x = 3,943.21

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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.