Home / 7,174.12-10,759.10-2,790.60

Finding the Fourth Proportional to 7,174.12, 10,759.10 and 2,790.60

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Solution

The fourth proportional to 7,174.12, 10,759.10 and 2,790.60 is: 4,185.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174.12 : 10,759.10 = 2,790.60 : x
  2. Step 2: Convert to fraction form
    7,174.12/10,759.10 = 2,790.60/x
  3. Step 3: Cross multiply
    7,174.12x = 10,759.10 × 2,790.60
  4. Step 4: Simplify right side
    7,174.12x = 30,024,344.46
  5. Step 5: Solve for x
    x = 30,024,344.46/7,174.12
  6. Step 6: Final answer
    x = 4,185.09

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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.