Home / 3,778.28-5,667.42-3,291.68

Finding the Fourth Proportional to 3,778.28, 5,667.42 and 3,291.68

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Solution

The fourth proportional to 3,778.28, 5,667.42 and 3,291.68 is: 4,937.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.28 : 5,667.42 = 3,291.68 : x
  2. Step 2: Convert to fraction form
    3,778.28/5,667.42 = 3,291.68/x
  3. Step 3: Cross multiply
    3,778.28x = 5,667.42 × 3,291.68
  4. Step 4: Simplify right side
    3,778.28x = 18,655,333.07
  5. Step 5: Solve for x
    x = 18,655,333.07/3,778.28
  6. Step 6: Final answer
    x = 4,937.52

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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.