Home / 3,939.16-5,434.30-2,613.08

Finding the Fourth Proportional to 3,939.16, 5,434.30 and 2,613.08

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Solution

The fourth proportional to 3,939.16, 5,434.30 and 2,613.08 is: 3,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.16 : 5,434.30 = 2,613.08 : x
  2. Step 2: Convert to fraction form
    3,939.16/5,434.30 = 2,613.08/x
  3. Step 3: Cross multiply
    3,939.16x = 5,434.30 × 2,613.08
  4. Step 4: Simplify right side
    3,939.16x = 14,200,260.64
  5. Step 5: Solve for x
    x = 14,200,260.64/3,939.16
  6. Step 6: Final answer
    x = 3,604.90

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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.