Home / 3,180.80-4,747.79-2,957.96

Finding the Fourth Proportional to 3,180.80, 4,747.79 and 2,957.96

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Solution

The fourth proportional to 3,180.80, 4,747.79 and 2,957.96 is: 4,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.80 : 4,747.79 = 2,957.96 : x
  2. Step 2: Convert to fraction form
    3,180.80/4,747.79 = 2,957.96/x
  3. Step 3: Cross multiply
    3,180.80x = 4,747.79 × 2,957.96
  4. Step 4: Simplify right side
    3,180.80x = 14,043,772.91
  5. Step 5: Solve for x
    x = 14,043,772.91/3,180.80
  6. Step 6: Final answer
    x = 4,415.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.