Home / 3,738.66-5,602.94-1,428.90

Finding the Fourth Proportional to 3,738.66, 5,602.94 and 1,428.90

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Solution

The fourth proportional to 3,738.66, 5,602.94 and 1,428.90 is: 2,141.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.66 : 5,602.94 = 1,428.90 : x
  2. Step 2: Convert to fraction form
    3,738.66/5,602.94 = 1,428.90/x
  3. Step 3: Cross multiply
    3,738.66x = 5,602.94 × 1,428.90
  4. Step 4: Simplify right side
    3,738.66x = 8,006,040.97
  5. Step 5: Solve for x
    x = 8,006,040.97/3,738.66
  6. Step 6: Final answer
    x = 2,141.42

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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.