Home / 6,939.28-10,398.18-2,777.44

Finding the Fourth Proportional to 6,939.28, 10,398.18 and 2,777.44

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Solution

The fourth proportional to 6,939.28, 10,398.18 and 2,777.44 is: 4,161.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.28 : 10,398.18 = 2,777.44 : x
  2. Step 2: Convert to fraction form
    6,939.28/10,398.18 = 2,777.44/x
  3. Step 3: Cross multiply
    6,939.28x = 10,398.18 × 2,777.44
  4. Step 4: Simplify right side
    6,939.28x = 28,880,321.06
  5. Step 5: Solve for x
    x = 28,880,321.06/6,939.28
  6. Step 6: Final answer
    x = 4,161.86

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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.