Home / 5,620.69-8,428.44-3,281.38

Finding the Fourth Proportional to 5,620.69, 8,428.44 and 3,281.38

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Solution

The fourth proportional to 5,620.69, 8,428.44 and 3,281.38 is: 4,920.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.69 : 8,428.44 = 3,281.38 : x
  2. Step 2: Convert to fraction form
    5,620.69/8,428.44 = 3,281.38/x
  3. Step 3: Cross multiply
    5,620.69x = 8,428.44 × 3,281.38
  4. Step 4: Simplify right side
    5,620.69x = 27,656,914.45
  5. Step 5: Solve for x
    x = 27,656,914.45/5,620.69
  6. Step 6: Final answer
    x = 4,920.56

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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.