Home / 3,903.91-5,385.49-2,659.75

Finding the Fourth Proportional to 3,903.91, 5,385.49 and 2,659.75

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Solution

The fourth proportional to 3,903.91, 5,385.49 and 2,659.75 is: 3,669.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.91 : 5,385.49 = 2,659.75 : x
  2. Step 2: Convert to fraction form
    3,903.91/5,385.49 = 2,659.75/x
  3. Step 3: Cross multiply
    3,903.91x = 5,385.49 × 2,659.75
  4. Step 4: Simplify right side
    3,903.91x = 14,324,057.03
  5. Step 5: Solve for x
    x = 14,324,057.03/3,903.91
  6. Step 6: Final answer
    x = 3,669.16

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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.