Home / 6,505.38-9,751.82-2,119.86

Finding the Fourth Proportional to 6,505.38, 9,751.82 and 2,119.86

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Solution

The fourth proportional to 6,505.38, 9,751.82 and 2,119.86 is: 3,177.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,505.38 : 9,751.82 = 2,119.86 : x
  2. Step 2: Convert to fraction form
    6,505.38/9,751.82 = 2,119.86/x
  3. Step 3: Cross multiply
    6,505.38x = 9,751.82 × 2,119.86
  4. Step 4: Simplify right side
    6,505.38x = 20,672,482.55
  5. Step 5: Solve for x
    x = 20,672,482.55/6,505.38
  6. Step 6: Final answer
    x = 3,177.75

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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.