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Finding the Fourth Proportional to 7,852.75, 11,779.37 and 2,380.75

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Solution

The fourth proportional to 7,852.75, 11,779.37 and 2,380.75 is: 3,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,852.75 : 11,779.37 = 2,380.75 : x
  2. Step 2: Convert to fraction form
    7,852.75/11,779.37 = 2,380.75/x
  3. Step 3: Cross multiply
    7,852.75x = 11,779.37 × 2,380.75
  4. Step 4: Simplify right side
    7,852.75x = 28,043,735.13
  5. Step 5: Solve for x
    x = 28,043,735.13/7,852.75
  6. Step 6: Final answer
    x = 3,571.20

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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.