Home / 3,780.38-5,216.55-2,208.26

Finding the Fourth Proportional to 3,780.38, 5,216.55 and 2,208.26

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Solution

The fourth proportional to 3,780.38, 5,216.55 and 2,208.26 is: 3,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.38 : 5,216.55 = 2,208.26 : x
  2. Step 2: Convert to fraction form
    3,780.38/5,216.55 = 2,208.26/x
  3. Step 3: Cross multiply
    3,780.38x = 5,216.55 × 2,208.26
  4. Step 4: Simplify right side
    3,780.38x = 11,519,498.70
  5. Step 5: Solve for x
    x = 11,519,498.70/3,780.38
  6. Step 6: Final answer
    x = 3,047.18

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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.