Home / 4,877.92-6,731.67-2,782

Finding the Fourth Proportional to 4,877.92, 6,731.67 and 2,782

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Solution

The fourth proportional to 4,877.92, 6,731.67 and 2,782 is: 3,839.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.92 : 6,731.67 = 2,782 : x
  2. Step 2: Convert to fraction form
    4,877.92/6,731.67 = 2,782/x
  3. Step 3: Cross multiply
    4,877.92x = 6,731.67 × 2,782
  4. Step 4: Simplify right side
    4,877.92x = 18,727,505.94
  5. Step 5: Solve for x
    x = 18,727,505.94/4,877.92
  6. Step 6: Final answer
    x = 3,839.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.