Home / 3,867.25-5,801.87-1,270.21

Finding the Fourth Proportional to 3,867.25, 5,801.87 and 1,270.21

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Solution

The fourth proportional to 3,867.25, 5,801.87 and 1,270.21 is: 1,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.25 : 5,801.87 = 1,270.21 : x
  2. Step 2: Convert to fraction form
    3,867.25/5,801.87 = 1,270.21/x
  3. Step 3: Cross multiply
    3,867.25x = 5,801.87 × 1,270.21
  4. Step 4: Simplify right side
    3,867.25x = 7,369,593.29
  5. Step 5: Solve for x
    x = 7,369,593.29/3,867.25
  6. Step 6: Final answer
    x = 1,905.64

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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.