Home / 3,428.97-4,731.98-1,936.89

Finding the Fourth Proportional to 3,428.97, 4,731.98 and 1,936.89

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Solution

The fourth proportional to 3,428.97, 4,731.98 and 1,936.89 is: 2,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.97 : 4,731.98 = 1,936.89 : x
  2. Step 2: Convert to fraction form
    3,428.97/4,731.98 = 1,936.89/x
  3. Step 3: Cross multiply
    3,428.97x = 4,731.98 × 1,936.89
  4. Step 4: Simplify right side
    3,428.97x = 9,165,315.06
  5. Step 5: Solve for x
    x = 9,165,315.06/3,428.97
  6. Step 6: Final answer
    x = 2,672.91

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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.