Home / 4,939.91-6,817.26-2,815.77

Finding the Fourth Proportional to 4,939.91, 6,817.26 and 2,815.77

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Solution

The fourth proportional to 4,939.91, 6,817.26 and 2,815.77 is: 3,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.91 : 6,817.26 = 2,815.77 : x
  2. Step 2: Convert to fraction form
    4,939.91/6,817.26 = 2,815.77/x
  3. Step 3: Cross multiply
    4,939.91x = 6,817.26 × 2,815.77
  4. Step 4: Simplify right side
    4,939.91x = 19,195,830.91
  5. Step 5: Solve for x
    x = 19,195,830.91/4,939.91
  6. Step 6: Final answer
    x = 3,885.87

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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.