Home / 7,776.92-11,665.34-2,581.56

Finding the Fourth Proportional to 7,776.92, 11,665.34 and 2,581.56

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Solution

The fourth proportional to 7,776.92, 11,665.34 and 2,581.56 is: 3,872.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.92 : 11,665.34 = 2,581.56 : x
  2. Step 2: Convert to fraction form
    7,776.92/11,665.34 = 2,581.56/x
  3. Step 3: Cross multiply
    7,776.92x = 11,665.34 × 2,581.56
  4. Step 4: Simplify right side
    7,776.92x = 30,114,775.13
  5. Step 5: Solve for x
    x = 30,114,775.13/7,776.92
  6. Step 6: Final answer
    x = 3,872.33

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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.