Home / 2,919.25-4,028.57-1,871.31

Finding the Fourth Proportional to 2,919.25, 4,028.57 and 1,871.31

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Solution

The fourth proportional to 2,919.25, 4,028.57 and 1,871.31 is: 2,582.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.25 : 4,028.57 = 1,871.31 : x
  2. Step 2: Convert to fraction form
    2,919.25/4,028.57 = 1,871.31/x
  3. Step 3: Cross multiply
    2,919.25x = 4,028.57 × 1,871.31
  4. Step 4: Simplify right side
    2,919.25x = 7,538,703.33
  5. Step 5: Solve for x
    x = 7,538,703.33/2,919.25
  6. Step 6: Final answer
    x = 2,582.41

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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.