Home / 2,939.97-4,057.11-1,613.80

Finding the Fourth Proportional to 2,939.97, 4,057.11 and 1,613.80

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Solution

The fourth proportional to 2,939.97, 4,057.11 and 1,613.80 is: 2,227.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.97 : 4,057.11 = 1,613.80 : x
  2. Step 2: Convert to fraction form
    2,939.97/4,057.11 = 1,613.80/x
  3. Step 3: Cross multiply
    2,939.97x = 4,057.11 × 1,613.80
  4. Step 4: Simplify right side
    2,939.97x = 6,547,353.98
  5. Step 5: Solve for x
    x = 6,547,353.98/2,939.97
  6. Step 6: Final answer
    x = 2,227.01

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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.