Home / 3,813.08-5,718.60-1,620.68

Finding the Fourth Proportional to 3,813.08, 5,718.60 and 1,620.68

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Solution

The fourth proportional to 3,813.08, 5,718.60 and 1,620.68 is: 2,430.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.08 : 5,718.60 = 1,620.68 : x
  2. Step 2: Convert to fraction form
    3,813.08/5,718.60 = 1,620.68/x
  3. Step 3: Cross multiply
    3,813.08x = 5,718.60 × 1,620.68
  4. Step 4: Simplify right side
    3,813.08x = 9,268,020.65
  5. Step 5: Solve for x
    x = 9,268,020.65/3,813.08
  6. Step 6: Final answer
    x = 2,430.59

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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.