Home / 7,145.82-10,716.30-2,761.02

Finding the Fourth Proportional to 7,145.82, 10,716.30 and 2,761.02

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Solution

The fourth proportional to 7,145.82, 10,716.30 and 2,761.02 is: 4,140.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.82 : 10,716.30 = 2,761.02 : x
  2. Step 2: Convert to fraction form
    7,145.82/10,716.30 = 2,761.02/x
  3. Step 3: Cross multiply
    7,145.82x = 10,716.30 × 2,761.02
  4. Step 4: Simplify right side
    7,145.82x = 29,587,918.63
  5. Step 5: Solve for x
    x = 29,587,918.63/7,145.82
  6. Step 6: Final answer
    x = 4,140.59

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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.