Home / 6,531-9,795.57-2,147.88

Finding the Fourth Proportional to 6,531, 9,795.57 and 2,147.88

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Solution

The fourth proportional to 6,531, 9,795.57 and 2,147.88 is: 3,221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531 : 9,795.57 = 2,147.88 : x
  2. Step 2: Convert to fraction form
    6,531/9,795.57 = 2,147.88/x
  3. Step 3: Cross multiply
    6,531x = 9,795.57 × 2,147.88
  4. Step 4: Simplify right side
    6,531x = 21,039,708.89
  5. Step 5: Solve for x
    x = 21,039,708.89/6,531
  6. Step 6: Final answer
    x = 3,221.51

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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.