Home / 2,545.24-3,819-1,620.56

Finding the Fourth Proportional to 2,545.24, 3,819 and 1,620.56

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Solution

The fourth proportional to 2,545.24, 3,819 and 1,620.56 is: 2,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.24 : 3,819 = 1,620.56 : x
  2. Step 2: Convert to fraction form
    2,545.24/3,819 = 1,620.56/x
  3. Step 3: Cross multiply
    2,545.24x = 3,819 × 1,620.56
  4. Step 4: Simplify right side
    2,545.24x = 6,188,899.55
  5. Step 5: Solve for x
    x = 6,188,899.55/2,545.24
  6. Step 6: Final answer
    x = 2,431.56

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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.