Home / 3,911.37-5,867.88-1,138.14

Finding the Fourth Proportional to 3,911.37, 5,867.88 and 1,138.14

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Solution

The fourth proportional to 3,911.37, 5,867.88 and 1,138.14 is: 1,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.37 : 5,867.88 = 1,138.14 : x
  2. Step 2: Convert to fraction form
    3,911.37/5,867.88 = 1,138.14/x
  3. Step 3: Cross multiply
    3,911.37x = 5,867.88 × 1,138.14
  4. Step 4: Simplify right side
    3,911.37x = 6,678,468.94
  5. Step 5: Solve for x
    x = 6,678,468.94/3,911.37
  6. Step 6: Final answer
    x = 1,707.45

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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.