Home / 4,939.64-6,817.20-2,949.92

Finding the Fourth Proportional to 4,939.64, 6,817.20 and 2,949.92

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Solution

The fourth proportional to 4,939.64, 6,817.20 and 2,949.92 is: 4,071.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.64 : 6,817.20 = 2,949.92 : x
  2. Step 2: Convert to fraction form
    4,939.64/6,817.20 = 2,949.92/x
  3. Step 3: Cross multiply
    4,939.64x = 6,817.20 × 2,949.92
  4. Step 4: Simplify right side
    4,939.64x = 20,110,194.62
  5. Step 5: Solve for x
    x = 20,110,194.62/4,939.64
  6. Step 6: Final answer
    x = 4,071.19

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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.