Home / 6,516.20-9,781.09-3,231.65

Finding the Fourth Proportional to 6,516.20, 9,781.09 and 3,231.65

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Solution

The fourth proportional to 6,516.20, 9,781.09 and 3,231.65 is: 4,850.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.20 : 9,781.09 = 3,231.65 : x
  2. Step 2: Convert to fraction form
    6,516.20/9,781.09 = 3,231.65/x
  3. Step 3: Cross multiply
    6,516.20x = 9,781.09 × 3,231.65
  4. Step 4: Simplify right side
    6,516.20x = 31,609,075.87
  5. Step 5: Solve for x
    x = 31,609,075.87/6,516.20
  6. Step 6: Final answer
    x = 4,850.84

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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.