Home / 7,928.83-11,892.30-2,085.90

Finding the Fourth Proportional to 7,928.83, 11,892.30 and 2,085.90

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Solution

The fourth proportional to 7,928.83, 11,892.30 and 2,085.90 is: 3,128.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.83 : 11,892.30 = 2,085.90 : x
  2. Step 2: Convert to fraction form
    7,928.83/11,892.30 = 2,085.90/x
  3. Step 3: Cross multiply
    7,928.83x = 11,892.30 × 2,085.90
  4. Step 4: Simplify right side
    7,928.83x = 24,806,089.11
  5. Step 5: Solve for x
    x = 24,806,089.11/7,928.83
  6. Step 6: Final answer
    x = 3,128.59

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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.