Home / 3,727.87-5,145.48-2,135.41

Finding the Fourth Proportional to 3,727.87, 5,145.48 and 2,135.41

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Solution

The fourth proportional to 3,727.87, 5,145.48 and 2,135.41 is: 2,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.87 : 5,145.48 = 2,135.41 : x
  2. Step 2: Convert to fraction form
    3,727.87/5,145.48 = 2,135.41/x
  3. Step 3: Cross multiply
    3,727.87x = 5,145.48 × 2,135.41
  4. Step 4: Simplify right side
    3,727.87x = 10,987,696.58
  5. Step 5: Solve for x
    x = 10,987,696.58/3,727.87
  6. Step 6: Final answer
    x = 2,947.45

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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.