Home / 4,715.26-7,072.90-1,428.36

Finding the Fourth Proportional to 4,715.26, 7,072.90 and 1,428.36

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Solution

The fourth proportional to 4,715.26, 7,072.90 and 1,428.36 is: 2,142.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.26 : 7,072.90 = 1,428.36 : x
  2. Step 2: Convert to fraction form
    4,715.26/7,072.90 = 1,428.36/x
  3. Step 3: Cross multiply
    4,715.26x = 7,072.90 × 1,428.36
  4. Step 4: Simplify right side
    4,715.26x = 10,102,647.44
  5. Step 5: Solve for x
    x = 10,102,647.44/4,715.26
  6. Step 6: Final answer
    x = 2,142.54

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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.