Home / 3,911.63-5,867.72-1,138.33

Finding the Fourth Proportional to 3,911.63, 5,867.72 and 1,138.33

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Solution

The fourth proportional to 3,911.63, 5,867.72 and 1,138.33 is: 1,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.63 : 5,867.72 = 1,138.33 : x
  2. Step 2: Convert to fraction form
    3,911.63/5,867.72 = 1,138.33/x
  3. Step 3: Cross multiply
    3,911.63x = 5,867.72 × 1,138.33
  4. Step 4: Simplify right side
    3,911.63x = 6,679,366.68
  5. Step 5: Solve for x
    x = 6,679,366.68/3,911.63
  6. Step 6: Final answer
    x = 1,707.57

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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.