Home / 3,936.81-5,905.25-2,292.30

Finding the Fourth Proportional to 3,936.81, 5,905.25 and 2,292.30

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Solution

The fourth proportional to 3,936.81, 5,905.25 and 2,292.30 is: 3,438.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.81 : 5,905.25 = 2,292.30 : x
  2. Step 2: Convert to fraction form
    3,936.81/5,905.25 = 2,292.30/x
  3. Step 3: Cross multiply
    3,936.81x = 5,905.25 × 2,292.30
  4. Step 4: Simplify right side
    3,936.81x = 13,536,593.11
  5. Step 5: Solve for x
    x = 13,536,593.11/3,936.81
  6. Step 6: Final answer
    x = 3,438.47

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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.