Home / 7,942.28-11,905.08-2,675.47

Finding the Fourth Proportional to 7,942.28, 11,905.08 and 2,675.47

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Solution

The fourth proportional to 7,942.28, 11,905.08 and 2,675.47 is: 4,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.28 : 11,905.08 = 2,675.47 : x
  2. Step 2: Convert to fraction form
    7,942.28/11,905.08 = 2,675.47/x
  3. Step 3: Cross multiply
    7,942.28x = 11,905.08 × 2,675.47
  4. Step 4: Simplify right side
    7,942.28x = 31,851,684.39
  5. Step 5: Solve for x
    x = 31,851,684.39/7,942.28
  6. Step 6: Final answer
    x = 4,010.40

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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.