Home / 7,718.38-11,576.01-2,171.98

Finding the Fourth Proportional to 7,718.38, 11,576.01 and 2,171.98

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Solution

The fourth proportional to 7,718.38, 11,576.01 and 2,171.98 is: 3,257.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.38 : 11,576.01 = 2,171.98 : x
  2. Step 2: Convert to fraction form
    7,718.38/11,576.01 = 2,171.98/x
  3. Step 3: Cross multiply
    7,718.38x = 11,576.01 × 2,171.98
  4. Step 4: Simplify right side
    7,718.38x = 25,142,851.34
  5. Step 5: Solve for x
    x = 25,142,851.34/7,718.38
  6. Step 6: Final answer
    x = 3,257.53

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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.