Home / 7,942.30-11,912.98-2,677.08

Finding the Fourth Proportional to 7,942.30, 11,912.98 and 2,677.08

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Solution

The fourth proportional to 7,942.30, 11,912.98 and 2,677.08 is: 4,015.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.30 : 11,912.98 = 2,677.08 : x
  2. Step 2: Convert to fraction form
    7,942.30/11,912.98 = 2,677.08/x
  3. Step 3: Cross multiply
    7,942.30x = 11,912.98 × 2,677.08
  4. Step 4: Simplify right side
    7,942.30x = 31,892,000.50
  5. Step 5: Solve for x
    x = 31,892,000.50/7,942.30
  6. Step 6: Final answer
    x = 4,015.46

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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.