Home / 7,581.92-11,376.18-2,655.08

Finding the Fourth Proportional to 7,581.92, 11,376.18 and 2,655.08

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Solution

The fourth proportional to 7,581.92, 11,376.18 and 2,655.08 is: 3,983.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.92 : 11,376.18 = 2,655.08 : x
  2. Step 2: Convert to fraction form
    7,581.92/11,376.18 = 2,655.08/x
  3. Step 3: Cross multiply
    7,581.92x = 11,376.18 × 2,655.08
  4. Step 4: Simplify right side
    7,581.92x = 30,204,667.99
  5. Step 5: Solve for x
    x = 30,204,667.99/7,581.92
  6. Step 6: Final answer
    x = 3,983.78

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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.