Home / 3,428.50-4,731.34-1,936.43

Finding the Fourth Proportional to 3,428.50, 4,731.34 and 1,936.43

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Solution

The fourth proportional to 3,428.50, 4,731.34 and 1,936.43 is: 2,672.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.50 : 4,731.34 = 1,936.43 : x
  2. Step 2: Convert to fraction form
    3,428.50/4,731.34 = 1,936.43/x
  3. Step 3: Cross multiply
    3,428.50x = 4,731.34 × 1,936.43
  4. Step 4: Simplify right side
    3,428.50x = 9,161,908.72
  5. Step 5: Solve for x
    x = 9,161,908.72/3,428.50
  6. Step 6: Final answer
    x = 2,672.28

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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.