Home / 2,615.99-3,919.38-2,180.03

Finding the Fourth Proportional to 2,615.99, 3,919.38 and 2,180.03

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Solution

The fourth proportional to 2,615.99, 3,919.38 and 2,180.03 is: 3,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.99 : 3,919.38 = 2,180.03 : x
  2. Step 2: Convert to fraction form
    2,615.99/3,919.38 = 2,180.03/x
  3. Step 3: Cross multiply
    2,615.99x = 3,919.38 × 2,180.03
  4. Step 4: Simplify right side
    2,615.99x = 8,544,346.38
  5. Step 5: Solve for x
    x = 8,544,346.38/2,615.99
  6. Step 6: Final answer
    x = 3,266.21

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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.