Home / 7,717.45-11,576.78-2,171.25

Finding the Fourth Proportional to 7,717.45, 11,576.78 and 2,171.25

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Solution

The fourth proportional to 7,717.45, 11,576.78 and 2,171.25 is: 3,257.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.45 : 11,576.78 = 2,171.25 : x
  2. Step 2: Convert to fraction form
    7,717.45/11,576.78 = 2,171.25/x
  3. Step 3: Cross multiply
    7,717.45x = 11,576.78 × 2,171.25
  4. Step 4: Simplify right side
    7,717.45x = 25,136,083.58
  5. Step 5: Solve for x
    x = 25,136,083.58/7,717.45
  6. Step 6: Final answer
    x = 3,257.05

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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.