Home / 2,836.90-3,914.82-1,578.01

Finding the Fourth Proportional to 2,836.90, 3,914.82 and 1,578.01

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Solution

The fourth proportional to 2,836.90, 3,914.82 and 1,578.01 is: 2,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.90 : 3,914.82 = 1,578.01 : x
  2. Step 2: Convert to fraction form
    2,836.90/3,914.82 = 1,578.01/x
  3. Step 3: Cross multiply
    2,836.90x = 3,914.82 × 1,578.01
  4. Step 4: Simplify right side
    2,836.90x = 6,177,625.11
  5. Step 5: Solve for x
    x = 6,177,625.11/2,836.90
  6. Step 6: Final answer
    x = 2,177.60

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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.