Home / 2,836.71-3,914.36-1,577.56

Finding the Fourth Proportional to 2,836.71, 3,914.36 and 1,577.56

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Solution

The fourth proportional to 2,836.71, 3,914.36 and 1,577.56 is: 2,176.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.71 : 3,914.36 = 1,577.56 : x
  2. Step 2: Convert to fraction form
    2,836.71/3,914.36 = 1,577.56/x
  3. Step 3: Cross multiply
    2,836.71x = 3,914.36 × 1,577.56
  4. Step 4: Simplify right side
    2,836.71x = 6,175,129.87
  5. Step 5: Solve for x
    x = 6,175,129.87/2,836.71
  6. Step 6: Final answer
    x = 2,176.86

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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.