Home / 7,974.05-11,961.68-2,427.86

Finding the Fourth Proportional to 7,974.05, 11,961.68 and 2,427.86

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Solution

The fourth proportional to 7,974.05, 11,961.68 and 2,427.86 is: 3,641.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.05 : 11,961.68 = 2,427.86 : x
  2. Step 2: Convert to fraction form
    7,974.05/11,961.68 = 2,427.86/x
  3. Step 3: Cross multiply
    7,974.05x = 11,961.68 × 2,427.86
  4. Step 4: Simplify right side
    7,974.05x = 29,041,302.17
  5. Step 5: Solve for x
    x = 29,041,302.17/7,974.05
  6. Step 6: Final answer
    x = 3,641.98

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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.