Home / 3,780.57-5,216.42-2,208.36

Finding the Fourth Proportional to 3,780.57, 5,216.42 and 2,208.36

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Solution

The fourth proportional to 3,780.57, 5,216.42 and 2,208.36 is: 3,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.57 : 5,216.42 = 2,208.36 : x
  2. Step 2: Convert to fraction form
    3,780.57/5,216.42 = 2,208.36/x
  3. Step 3: Cross multiply
    3,780.57x = 5,216.42 × 2,208.36
  4. Step 4: Simplify right side
    3,780.57x = 11,519,696.15
  5. Step 5: Solve for x
    x = 11,519,696.15/3,780.57
  6. Step 6: Final answer
    x = 3,047.08

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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.