Home / 7,382.34-11,071.62-2,187

Finding the Fourth Proportional to 7,382.34, 11,071.62 and 2,187

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Solution

The fourth proportional to 7,382.34, 11,071.62 and 2,187 is: 3,279.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.34 : 11,071.62 = 2,187 : x
  2. Step 2: Convert to fraction form
    7,382.34/11,071.62 = 2,187/x
  3. Step 3: Cross multiply
    7,382.34x = 11,071.62 × 2,187
  4. Step 4: Simplify right side
    7,382.34x = 24,213,632.94
  5. Step 5: Solve for x
    x = 24,213,632.94/7,382.34
  6. Step 6: Final answer
    x = 3,279.94

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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.