Home / 3,628.38-5,441.85-1,778.70

Finding the Fourth Proportional to 3,628.38, 5,441.85 and 1,778.70

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Solution

The fourth proportional to 3,628.38, 5,441.85 and 1,778.70 is: 2,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.38 : 5,441.85 = 1,778.70 : x
  2. Step 2: Convert to fraction form
    3,628.38/5,441.85 = 1,778.70/x
  3. Step 3: Cross multiply
    3,628.38x = 5,441.85 × 1,778.70
  4. Step 4: Simplify right side
    3,628.38x = 9,679,418.60
  5. Step 5: Solve for x
    x = 9,679,418.60/3,628.38
  6. Step 6: Final answer
    x = 2,667.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.