Home / 3,778.68-5,667.78-2,318.04

Finding the Fourth Proportional to 3,778.68, 5,667.78 and 2,318.04

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Solution

The fourth proportional to 3,778.68, 5,667.78 and 2,318.04 is: 3,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.68 : 5,667.78 = 2,318.04 : x
  2. Step 2: Convert to fraction form
    3,778.68/5,667.78 = 2,318.04/x
  3. Step 3: Cross multiply
    3,778.68x = 5,667.78 × 2,318.04
  4. Step 4: Simplify right side
    3,778.68x = 13,138,140.75
  5. Step 5: Solve for x
    x = 13,138,140.75/3,778.68
  6. Step 6: Final answer
    x = 3,476.91

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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.