Home / 3,778.30-5,667.36-1,180.90

Finding the Fourth Proportional to 3,778.30, 5,667.36 and 1,180.90

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Solution

The fourth proportional to 3,778.30, 5,667.36 and 1,180.90 is: 1,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.30 : 5,667.36 = 1,180.90 : x
  2. Step 2: Convert to fraction form
    3,778.30/5,667.36 = 1,180.90/x
  3. Step 3: Cross multiply
    3,778.30x = 5,667.36 × 1,180.90
  4. Step 4: Simplify right side
    3,778.30x = 6,692,585.42
  5. Step 5: Solve for x
    x = 6,692,585.42/3,778.30
  6. Step 6: Final answer
    x = 1,771.32

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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.