Home / 3,180.60-4,767.64-1,332.78

Finding the Fourth Proportional to 3,180.60, 4,767.64 and 1,332.78

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Solution

The fourth proportional to 3,180.60, 4,767.64 and 1,332.78 is: 1,997.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.60 : 4,767.64 = 1,332.78 : x
  2. Step 2: Convert to fraction form
    3,180.60/4,767.64 = 1,332.78/x
  3. Step 3: Cross multiply
    3,180.60x = 4,767.64 × 1,332.78
  4. Step 4: Simplify right side
    3,180.60x = 6,354,208.58
  5. Step 5: Solve for x
    x = 6,354,208.58/3,180.60
  6. Step 6: Final answer
    x = 1,997.80

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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.