Home / 2,783.25-4,175.33-1,139.36

Finding the Fourth Proportional to 2,783.25, 4,175.33 and 1,139.36

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Solution

The fourth proportional to 2,783.25, 4,175.33 and 1,139.36 is: 1,709.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.25 : 4,175.33 = 1,139.36 : x
  2. Step 2: Convert to fraction form
    2,783.25/4,175.33 = 1,139.36/x
  3. Step 3: Cross multiply
    2,783.25x = 4,175.33 × 1,139.36
  4. Step 4: Simplify right side
    2,783.25x = 4,757,177.42
  5. Step 5: Solve for x
    x = 4,757,177.42/2,783.25
  6. Step 6: Final answer
    x = 1,709.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.