Home / 2,939.38-4,056.06-1,680.46

Finding the Fourth Proportional to 2,939.38, 4,056.06 and 1,680.46

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Solution

The fourth proportional to 2,939.38, 4,056.06 and 1,680.46 is: 2,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.38 : 4,056.06 = 1,680.46 : x
  2. Step 2: Convert to fraction form
    2,939.38/4,056.06 = 1,680.46/x
  3. Step 3: Cross multiply
    2,939.38x = 4,056.06 × 1,680.46
  4. Step 4: Simplify right side
    2,939.38x = 6,816,046.59
  5. Step 5: Solve for x
    x = 6,816,046.59/2,939.38
  6. Step 6: Final answer
    x = 2,318.87

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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.