Home / 2,180.25-3,007.46-1,296

Finding the Fourth Proportional to 2,180.25, 3,007.46 and 1,296

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Solution

The fourth proportional to 2,180.25, 3,007.46 and 1,296 is: 1,787.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.25 : 3,007.46 = 1,296 : x
  2. Step 2: Convert to fraction form
    2,180.25/3,007.46 = 1,296/x
  3. Step 3: Cross multiply
    2,180.25x = 3,007.46 × 1,296
  4. Step 4: Simplify right side
    2,180.25x = 3,897,671.40
  5. Step 5: Solve for x
    x = 3,897,671.40/2,180.25
  6. Step 6: Final answer
    x = 1,787.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.