Home / 3,180.96-4,767.60-1,447.20

Finding the Fourth Proportional to 3,180.96, 4,767.60 and 1,447.20

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Solution

The fourth proportional to 3,180.96, 4,767.60 and 1,447.20 is: 2,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.96 : 4,767.60 = 1,447.20 : x
  2. Step 2: Convert to fraction form
    3,180.96/4,767.60 = 1,447.20/x
  3. Step 3: Cross multiply
    3,180.96x = 4,767.60 × 1,447.20
  4. Step 4: Simplify right side
    3,180.96x = 6,899,670.72
  5. Step 5: Solve for x
    x = 6,899,670.72/3,180.96
  6. Step 6: Final answer
    x = 2,169.05

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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.