Home / 2,836.89-3,914.91-1,578.06

Finding the Fourth Proportional to 2,836.89, 3,914.91 and 1,578.06

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Solution

The fourth proportional to 2,836.89, 3,914.91 and 1,578.06 is: 2,177.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.89 : 3,914.91 = 1,578.06 : x
  2. Step 2: Convert to fraction form
    2,836.89/3,914.91 = 1,578.06/x
  3. Step 3: Cross multiply
    2,836.89x = 3,914.91 × 1,578.06
  4. Step 4: Simplify right side
    2,836.89x = 6,177,962.87
  5. Step 5: Solve for x
    x = 6,177,962.87/2,836.89
  6. Step 6: Final answer
    x = 2,177.72

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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.