Home / 3,890.97-5,837.31-1,117.43

Finding the Fourth Proportional to 3,890.97, 5,837.31 and 1,117.43

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Solution

The fourth proportional to 3,890.97, 5,837.31 and 1,117.43 is: 1,676.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.97 : 5,837.31 = 1,117.43 : x
  2. Step 2: Convert to fraction form
    3,890.97/5,837.31 = 1,117.43/x
  3. Step 3: Cross multiply
    3,890.97x = 5,837.31 × 1,117.43
  4. Step 4: Simplify right side
    3,890.97x = 6,522,756.13
  5. Step 5: Solve for x
    x = 6,522,756.13/3,890.97
  6. Step 6: Final answer
    x = 1,676.38

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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.