Home / 7,173.90-10,756.53-2,790.18

Finding the Fourth Proportional to 7,173.90, 10,756.53 and 2,790.18

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Solution

The fourth proportional to 7,173.90, 10,756.53 and 2,790.18 is: 4,183.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.90 : 10,756.53 = 2,790.18 : x
  2. Step 2: Convert to fraction form
    7,173.90/10,756.53 = 2,790.18/x
  3. Step 3: Cross multiply
    7,173.90x = 10,756.53 × 2,790.18
  4. Step 4: Simplify right side
    7,173.90x = 30,012,654.88
  5. Step 5: Solve for x
    x = 30,012,654.88/7,173.90
  6. Step 6: Final answer
    x = 4,183.59

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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.