Home / 2,617.62-3,609.66-1,821.90

Finding the Fourth Proportional to 2,617.62, 3,609.66 and 1,821.90

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Solution

The fourth proportional to 2,617.62, 3,609.66 and 1,821.90 is: 2,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.62 : 3,609.66 = 1,821.90 : x
  2. Step 2: Convert to fraction form
    2,617.62/3,609.66 = 1,821.90/x
  3. Step 3: Cross multiply
    2,617.62x = 3,609.66 × 1,821.90
  4. Step 4: Simplify right side
    2,617.62x = 6,576,439.55
  5. Step 5: Solve for x
    x = 6,576,439.55/2,617.62
  6. Step 6: Final answer
    x = 2,512.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.