Home / 2,617.20-3,918.51-2,150.64

Finding the Fourth Proportional to 2,617.20, 3,918.51 and 2,150.64

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Solution

The fourth proportional to 2,617.20, 3,918.51 and 2,150.64 is: 3,219.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.20 : 3,918.51 = 2,150.64 : x
  2. Step 2: Convert to fraction form
    2,617.20/3,918.51 = 2,150.64/x
  3. Step 3: Cross multiply
    2,617.20x = 3,918.51 × 2,150.64
  4. Step 4: Simplify right side
    2,617.20x = 8,427,304.35
  5. Step 5: Solve for x
    x = 8,427,304.35/2,617.20
  6. Step 6: Final answer
    x = 3,219.97

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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.