Home / 7,149.42-10,709.53-3,679.38

Finding the Fourth Proportional to 7,149.42, 10,709.53 and 3,679.38

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Solution

The fourth proportional to 7,149.42, 10,709.53 and 3,679.38 is: 5,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.42 : 10,709.53 = 3,679.38 : x
  2. Step 2: Convert to fraction form
    7,149.42/10,709.53 = 3,679.38/x
  3. Step 3: Cross multiply
    7,149.42x = 10,709.53 × 3,679.38
  4. Step 4: Simplify right side
    7,149.42x = 39,404,430.49
  5. Step 5: Solve for x
    x = 39,404,430.49/7,149.42
  6. Step 6: Final answer
    x = 5,511.56

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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.