Home / 3,428.44-5,141.85-1,578.40

Finding the Fourth Proportional to 3,428.44, 5,141.85 and 1,578.40

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Solution

The fourth proportional to 3,428.44, 5,141.85 and 1,578.40 is: 2,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.44 : 5,141.85 = 1,578.40 : x
  2. Step 2: Convert to fraction form
    3,428.44/5,141.85 = 1,578.40/x
  3. Step 3: Cross multiply
    3,428.44x = 5,141.85 × 1,578.40
  4. Step 4: Simplify right side
    3,428.44x = 8,115,896.04
  5. Step 5: Solve for x
    x = 8,115,896.04/3,428.44
  6. Step 6: Final answer
    x = 2,367.23

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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.