Home / 3,780.45-5,217.27-2,288.43

Finding the Fourth Proportional to 3,780.45, 5,217.27 and 2,288.43

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Solution

The fourth proportional to 3,780.45, 5,217.27 and 2,288.43 is: 3,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.45 : 5,217.27 = 2,288.43 : x
  2. Step 2: Convert to fraction form
    3,780.45/5,217.27 = 2,288.43/x
  3. Step 3: Cross multiply
    3,780.45x = 5,217.27 × 2,288.43
  4. Step 4: Simplify right side
    3,780.45x = 11,939,357.19
  5. Step 5: Solve for x
    x = 11,939,357.19/3,780.45
  6. Step 6: Final answer
    x = 3,158.18

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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.