Home / 3,780.54-5,217.43-2,102.08

Finding the Fourth Proportional to 3,780.54, 5,217.43 and 2,102.08

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Solution

The fourth proportional to 3,780.54, 5,217.43 and 2,102.08 is: 2,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.54 : 5,217.43 = 2,102.08 : x
  2. Step 2: Convert to fraction form
    3,780.54/5,217.43 = 2,102.08/x
  3. Step 3: Cross multiply
    3,780.54x = 5,217.43 × 2,102.08
  4. Step 4: Simplify right side
    3,780.54x = 10,967,455.25
  5. Step 5: Solve for x
    x = 10,967,455.25/3,780.54
  6. Step 6: Final answer
    x = 2,901.03

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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.