Home / 2,936.78-4,054.76-2,180.74

Finding the Fourth Proportional to 2,936.78, 4,054.76 and 2,180.74

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Solution

The fourth proportional to 2,936.78, 4,054.76 and 2,180.74 is: 3,010.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.78 : 4,054.76 = 2,180.74 : x
  2. Step 2: Convert to fraction form
    2,936.78/4,054.76 = 2,180.74/x
  3. Step 3: Cross multiply
    2,936.78x = 4,054.76 × 2,180.74
  4. Step 4: Simplify right side
    2,936.78x = 8,842,377.32
  5. Step 5: Solve for x
    x = 8,842,377.32/2,936.78
  6. Step 6: Final answer
    x = 3,010.91

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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.