Home / 2,939.91-4,057.08-1,613.62

Finding the Fourth Proportional to 2,939.91, 4,057.08 and 1,613.62

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Solution

The fourth proportional to 2,939.91, 4,057.08 and 1,613.62 is: 2,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.91 : 4,057.08 = 1,613.62 : x
  2. Step 2: Convert to fraction form
    2,939.91/4,057.08 = 1,613.62/x
  3. Step 3: Cross multiply
    2,939.91x = 4,057.08 × 1,613.62
  4. Step 4: Simplify right side
    2,939.91x = 6,546,584.45
  5. Step 5: Solve for x
    x = 6,546,584.45/2,939.91
  6. Step 6: Final answer
    x = 2,226.80

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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.