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Finding the Fourth Proportional to 7,714.58, 11,571.86 and 2,520.46

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Solution

The fourth proportional to 7,714.58, 11,571.86 and 2,520.46 is: 3,780.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.58 : 11,571.86 = 2,520.46 : x
  2. Step 2: Convert to fraction form
    7,714.58/11,571.86 = 2,520.46/x
  3. Step 3: Cross multiply
    7,714.58x = 11,571.86 × 2,520.46
  4. Step 4: Simplify right side
    7,714.58x = 29,166,410.26
  5. Step 5: Solve for x
    x = 29,166,410.26/7,714.58
  6. Step 6: Final answer
    x = 3,780.69

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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.