Home / 3,747.78-5,171.85-2,069.09

Finding the Fourth Proportional to 3,747.78, 5,171.85 and 2,069.09

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Solution

The fourth proportional to 3,747.78, 5,171.85 and 2,069.09 is: 2,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.78 : 5,171.85 = 2,069.09 : x
  2. Step 2: Convert to fraction form
    3,747.78/5,171.85 = 2,069.09/x
  3. Step 3: Cross multiply
    3,747.78x = 5,171.85 × 2,069.09
  4. Step 4: Simplify right side
    3,747.78x = 10,700,997.26
  5. Step 5: Solve for x
    x = 10,700,997.26/3,747.78
  6. Step 6: Final answer
    x = 2,855.29

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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.