Home / 3,778.36-5,667.78-1,587.16

Finding the Fourth Proportional to 3,778.36, 5,667.78 and 1,587.16

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Solution

The fourth proportional to 3,778.36, 5,667.78 and 1,587.16 is: 2,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.36 : 5,667.78 = 1,587.16 : x
  2. Step 2: Convert to fraction form
    3,778.36/5,667.78 = 1,587.16/x
  3. Step 3: Cross multiply
    3,778.36x = 5,667.78 × 1,587.16
  4. Step 4: Simplify right side
    3,778.36x = 8,995,673.70
  5. Step 5: Solve for x
    x = 8,995,673.70/3,778.36
  6. Step 6: Final answer
    x = 2,380.84

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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.