Home / 3,815.08-5,721.60-1,622.68

Finding the Fourth Proportional to 3,815.08, 5,721.60 and 1,622.68

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Solution

The fourth proportional to 3,815.08, 5,721.60 and 1,622.68 is: 2,433.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.08 : 5,721.60 = 1,622.68 : x
  2. Step 2: Convert to fraction form
    3,815.08/5,721.60 = 1,622.68/x
  3. Step 3: Cross multiply
    3,815.08x = 5,721.60 × 1,622.68
  4. Step 4: Simplify right side
    3,815.08x = 9,284,325.89
  5. Step 5: Solve for x
    x = 9,284,325.89/3,815.08
  6. Step 6: Final answer
    x = 2,433.59

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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.