Home / 7,380.38-11,072.72-2,186.38

Finding the Fourth Proportional to 7,380.38, 11,072.72 and 2,186.38

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Solution

The fourth proportional to 7,380.38, 11,072.72 and 2,186.38 is: 3,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.38 : 11,072.72 = 2,186.38 : x
  2. Step 2: Convert to fraction form
    7,380.38/11,072.72 = 2,186.38/x
  3. Step 3: Cross multiply
    7,380.38x = 11,072.72 × 2,186.38
  4. Step 4: Simplify right side
    7,380.38x = 24,209,173.55
  5. Step 5: Solve for x
    x = 24,209,173.55/7,380.38
  6. Step 6: Final answer
    x = 3,280.21

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1.5x scale

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.