Home / 2,179.77-3,261.42-1,867.38

Finding the Fourth Proportional to 2,179.77, 3,261.42 and 1,867.38

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Solution

The fourth proportional to 2,179.77, 3,261.42 and 1,867.38 is: 2,794.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.77 : 3,261.42 = 1,867.38 : x
  2. Step 2: Convert to fraction form
    2,179.77/3,261.42 = 1,867.38/x
  3. Step 3: Cross multiply
    2,179.77x = 3,261.42 × 1,867.38
  4. Step 4: Simplify right side
    2,179.77x = 6,090,310.48
  5. Step 5: Solve for x
    x = 6,090,310.48/2,179.77
  6. Step 6: Final answer
    x = 2,794.02

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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.