Home / 7,139.96-10,708.22-2,754.62

Finding the Fourth Proportional to 7,139.96, 10,708.22 and 2,754.62

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Solution

The fourth proportional to 7,139.96, 10,708.22 and 2,754.62 is: 4,131.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.96 : 10,708.22 = 2,754.62 : x
  2. Step 2: Convert to fraction form
    7,139.96/10,708.22 = 2,754.62/x
  3. Step 3: Cross multiply
    7,139.96x = 10,708.22 × 2,754.62
  4. Step 4: Simplify right side
    7,139.96x = 29,497,063.20
  5. Step 5: Solve for x
    x = 29,497,063.20/7,139.96
  6. Step 6: Final answer
    x = 4,131.26

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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.