Home / 3,747.92-5,172.12-2,069.34

Finding the Fourth Proportional to 3,747.92, 5,172.12 and 2,069.34

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Solution

The fourth proportional to 3,747.92, 5,172.12 and 2,069.34 is: 2,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.92 : 5,172.12 = 2,069.34 : x
  2. Step 2: Convert to fraction form
    3,747.92/5,172.12 = 2,069.34/x
  3. Step 3: Cross multiply
    3,747.92x = 5,172.12 × 2,069.34
  4. Step 4: Simplify right side
    3,747.92x = 10,702,874.80
  5. Step 5: Solve for x
    x = 10,702,874.80/3,747.92
  6. Step 6: Final answer
    x = 2,855.68

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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.