Home / 7,926.80-11,887.40-2,731.46

Finding the Fourth Proportional to 7,926.80, 11,887.40 and 2,731.46

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Solution

The fourth proportional to 7,926.80, 11,887.40 and 2,731.46 is: 4,096.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.80 : 11,887.40 = 2,731.46 : x
  2. Step 2: Convert to fraction form
    7,926.80/11,887.40 = 2,731.46/x
  3. Step 3: Cross multiply
    7,926.80x = 11,887.40 × 2,731.46
  4. Step 4: Simplify right side
    7,926.80x = 32,469,957.60
  5. Step 5: Solve for x
    x = 32,469,957.60/7,926.80
  6. Step 6: Final answer
    x = 4,096.23

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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.