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Finding the Fourth Proportional to 7,659.53, 11,490.28 and 2,729.67

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Solution

The fourth proportional to 7,659.53, 11,490.28 and 2,729.67 is: 4,094.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.53 : 11,490.28 = 2,729.67 : x
  2. Step 2: Convert to fraction form
    7,659.53/11,490.28 = 2,729.67/x
  3. Step 3: Cross multiply
    7,659.53x = 11,490.28 × 2,729.67
  4. Step 4: Simplify right side
    7,659.53x = 31,364,686.97
  5. Step 5: Solve for x
    x = 31,364,686.97/7,659.53
  6. Step 6: Final answer
    x = 4,094.86

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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.