Home / 7,928.82-11,892.22-2,085.89

Finding the Fourth Proportional to 7,928.82, 11,892.22 and 2,085.89

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Solution

The fourth proportional to 7,928.82, 11,892.22 and 2,085.89 is: 3,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.82 : 11,892.22 = 2,085.89 : x
  2. Step 2: Convert to fraction form
    7,928.82/11,892.22 = 2,085.89/x
  3. Step 3: Cross multiply
    7,928.82x = 11,892.22 × 2,085.89
  4. Step 4: Simplify right side
    7,928.82x = 24,805,798.10
  5. Step 5: Solve for x
    x = 24,805,798.10/7,928.82
  6. Step 6: Final answer
    x = 3,128.56

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1.5x scale

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.