Home / 2,939.87-4,057.05-1,613.54

Finding the Fourth Proportional to 2,939.87, 4,057.05 and 1,613.54

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Solution

The fourth proportional to 2,939.87, 4,057.05 and 1,613.54 is: 2,226.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.87 : 4,057.05 = 1,613.54 : x
  2. Step 2: Convert to fraction form
    2,939.87/4,057.05 = 1,613.54/x
  3. Step 3: Cross multiply
    2,939.87x = 4,057.05 × 1,613.54
  4. Step 4: Simplify right side
    2,939.87x = 6,546,225.65
  5. Step 5: Solve for x
    x = 6,546,225.65/2,939.87
  6. Step 6: Final answer
    x = 2,226.71

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1.5x scale

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.