Home / 3,926.90-5,423.91-2,936.56

Finding the Fourth Proportional to 3,926.90, 5,423.91 and 2,936.56

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Solution

The fourth proportional to 3,926.90, 5,423.91 and 2,936.56 is: 4,056.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.90 : 5,423.91 = 2,936.56 : x
  2. Step 2: Convert to fraction form
    3,926.90/5,423.91 = 2,936.56/x
  3. Step 3: Cross multiply
    3,926.90x = 5,423.91 × 2,936.56
  4. Step 4: Simplify right side
    3,926.90x = 15,927,637.15
  5. Step 5: Solve for x
    x = 15,927,637.15/3,926.90
  6. Step 6: Final answer
    x = 4,056.03

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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.