Home / 3,891.40-5,837.08-2,246.88

Finding the Fourth Proportional to 3,891.40, 5,837.08 and 2,246.88

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Solution

The fourth proportional to 3,891.40, 5,837.08 and 2,246.88 is: 3,370.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.40 : 5,837.08 = 2,246.88 : x
  2. Step 2: Convert to fraction form
    3,891.40/5,837.08 = 2,246.88/x
  3. Step 3: Cross multiply
    3,891.40x = 5,837.08 × 2,246.88
  4. Step 4: Simplify right side
    3,891.40x = 13,115,218.31
  5. Step 5: Solve for x
    x = 13,115,218.31/3,891.40
  6. Step 6: Final answer
    x = 3,370.31

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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.