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Finding the Fourth Proportional to 3,867.36, 5,801 and 945.68

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Solution

The fourth proportional to 3,867.36, 5,801 and 945.68 is: 1,418.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.36 : 5,801 = 945.68 : x
  2. Step 2: Convert to fraction form
    3,867.36/5,801 = 945.68/x
  3. Step 3: Cross multiply
    3,867.36x = 5,801 × 945.68
  4. Step 4: Simplify right side
    3,867.36x = 5,485,889.68
  5. Step 5: Solve for x
    x = 5,485,889.68/3,867.36
  6. Step 6: Final answer
    x = 1,418.51

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1.5x scale

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.