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Finding the Fourth Proportional to 3,428.95, 4,732.13 and 1,936.93

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Solution

The fourth proportional to 3,428.95, 4,732.13 and 1,936.93 is: 2,673.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.95 : 4,732.13 = 1,936.93 : x
  2. Step 2: Convert to fraction form
    3,428.95/4,732.13 = 1,936.93/x
  3. Step 3: Cross multiply
    3,428.95x = 4,732.13 × 1,936.93
  4. Step 4: Simplify right side
    3,428.95x = 9,165,797.57
  5. Step 5: Solve for x
    x = 9,165,797.57/3,428.95
  6. Step 6: Final answer
    x = 2,673.06

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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.