Home / 3,901.39-5,383.90-2,133.01

Finding the Fourth Proportional to 3,901.39, 5,383.90 and 2,133.01

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Solution

The fourth proportional to 3,901.39, 5,383.90 and 2,133.01 is: 2,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.39 : 5,383.90 = 2,133.01 : x
  2. Step 2: Convert to fraction form
    3,901.39/5,383.90 = 2,133.01/x
  3. Step 3: Cross multiply
    3,901.39x = 5,383.90 × 2,133.01
  4. Step 4: Simplify right side
    3,901.39x = 11,483,912.54
  5. Step 5: Solve for x
    x = 11,483,912.54/3,901.39
  6. Step 6: Final answer
    x = 2,943.54

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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.