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Finding the Fourth Proportional to 7,659.68, 11,490.84 and 3,764.48

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Solution

The fourth proportional to 7,659.68, 11,490.84 and 3,764.48 is: 5,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.68 : 11,490.84 = 3,764.48 : x
  2. Step 2: Convert to fraction form
    7,659.68/11,490.84 = 3,764.48/x
  3. Step 3: Cross multiply
    7,659.68x = 11,490.84 × 3,764.48
  4. Step 4: Simplify right side
    7,659.68x = 43,257,037.36
  5. Step 5: Solve for x
    x = 43,257,037.36/7,659.68
  6. Step 6: Final answer
    x = 5,647.37

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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.