Home / 7,619.67-11,421.41-3,234.87

Finding the Fourth Proportional to 7,619.67, 11,421.41 and 3,234.87

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Solution

The fourth proportional to 7,619.67, 11,421.41 and 3,234.87 is: 4,848.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.67 : 11,421.41 = 3,234.87 : x
  2. Step 2: Convert to fraction form
    7,619.67/11,421.41 = 3,234.87/x
  3. Step 3: Cross multiply
    7,619.67x = 11,421.41 × 3,234.87
  4. Step 4: Simplify right side
    7,619.67x = 36,946,760.39
  5. Step 5: Solve for x
    x = 36,946,760.39/7,619.67
  6. Step 6: Final answer
    x = 4,848.87

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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.