Home / 7,141.96-10,711.21-2,756.62

Finding the Fourth Proportional to 7,141.96, 10,711.21 and 2,756.62

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Solution

The fourth proportional to 7,141.96, 10,711.21 and 2,756.62 is: 4,134.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.96 : 10,711.21 = 2,756.62 : x
  2. Step 2: Convert to fraction form
    7,141.96/10,711.21 = 2,756.62/x
  3. Step 3: Cross multiply
    7,141.96x = 10,711.21 × 2,756.62
  4. Step 4: Simplify right side
    7,141.96x = 29,526,735.71
  5. Step 5: Solve for x
    x = 29,526,735.71/7,141.96
  6. Step 6: Final answer
    x = 4,134.26

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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.