Home / 7,261.22-10,891.89-2,581.31

Finding the Fourth Proportional to 7,261.22, 10,891.89 and 2,581.31

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Solution

The fourth proportional to 7,261.22, 10,891.89 and 2,581.31 is: 3,871.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.22 : 10,891.89 = 2,581.31 : x
  2. Step 2: Convert to fraction form
    7,261.22/10,891.89 = 2,581.31/x
  3. Step 3: Cross multiply
    7,261.22x = 10,891.89 × 2,581.31
  4. Step 4: Simplify right side
    7,261.22x = 28,115,290.12
  5. Step 5: Solve for x
    x = 28,115,290.12/7,261.22
  6. Step 6: Final answer
    x = 3,871.98

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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.