Home / 4,108.12-5,667.10-2,781.36

Finding the Fourth Proportional to 4,108.12, 5,667.10 and 2,781.36

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Solution

The fourth proportional to 4,108.12, 5,667.10 and 2,781.36 is: 3,836.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,108.12 : 5,667.10 = 2,781.36 : x
  2. Step 2: Convert to fraction form
    4,108.12/5,667.10 = 2,781.36/x
  3. Step 3: Cross multiply
    4,108.12x = 5,667.10 × 2,781.36
  4. Step 4: Simplify right side
    4,108.12x = 15,762,245.26
  5. Step 5: Solve for x
    x = 15,762,245.26/4,108.12
  6. Step 6: Final answer
    x = 3,836.85

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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.