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Finding the Fourth Proportional to 3,891.03, 5,837.48 and 1,117.64

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Solution

The fourth proportional to 3,891.03, 5,837.48 and 1,117.64 is: 1,676.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.03 : 5,837.48 = 1,117.64 : x
  2. Step 2: Convert to fraction form
    3,891.03/5,837.48 = 1,117.64/x
  3. Step 3: Cross multiply
    3,891.03x = 5,837.48 × 1,117.64
  4. Step 4: Simplify right side
    3,891.03x = 6,524,210.15
  5. Step 5: Solve for x
    x = 6,524,210.15/3,891.03
  6. Step 6: Final answer
    x = 1,676.73

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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.