Home / 3,780.13-5,216.20-2,208.01

Finding the Fourth Proportional to 3,780.13, 5,216.20 and 2,208.01

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Solution

The fourth proportional to 3,780.13, 5,216.20 and 2,208.01 is: 3,046.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.13 : 5,216.20 = 2,208.01 : x
  2. Step 2: Convert to fraction form
    3,780.13/5,216.20 = 2,208.01/x
  3. Step 3: Cross multiply
    3,780.13x = 5,216.20 × 2,208.01
  4. Step 4: Simplify right side
    3,780.13x = 11,517,421.76
  5. Step 5: Solve for x
    x = 11,517,421.76/3,780.13
  6. Step 6: Final answer
    x = 3,046.83

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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.