Home / 5,274.86-7,910.55-1,942.34

Finding the Fourth Proportional to 5,274.86, 7,910.55 and 1,942.34

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Solution

The fourth proportional to 5,274.86, 7,910.55 and 1,942.34 is: 2,912.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.86 : 7,910.55 = 1,942.34 : x
  2. Step 2: Convert to fraction form
    5,274.86/7,910.55 = 1,942.34/x
  3. Step 3: Cross multiply
    5,274.86x = 7,910.55 × 1,942.34
  4. Step 4: Simplify right side
    5,274.86x = 15,364,938.13
  5. Step 5: Solve for x
    x = 15,364,938.13/5,274.86
  6. Step 6: Final answer
    x = 2,912.86

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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.