Home / 3,780.44-5,216.69-2,101.64

Finding the Fourth Proportional to 3,780.44, 5,216.69 and 2,101.64

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Solution

The fourth proportional to 3,780.44, 5,216.69 and 2,101.64 is: 2,900.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.44 : 5,216.69 = 2,101.64 : x
  2. Step 2: Convert to fraction form
    3,780.44/5,216.69 = 2,101.64/x
  3. Step 3: Cross multiply
    3,780.44x = 5,216.69 × 2,101.64
  4. Step 4: Simplify right side
    3,780.44x = 10,963,604.37
  5. Step 5: Solve for x
    x = 10,963,604.37/3,780.44
  6. Step 6: Final answer
    x = 2,900.09

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1.5x scale

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.