Home / 3,781.83-5,219.06-2,209.89

Finding the Fourth Proportional to 3,781.83, 5,219.06 and 2,209.89

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Solution

The fourth proportional to 3,781.83, 5,219.06 and 2,209.89 is: 3,049.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.83 : 5,219.06 = 2,209.89 : x
  2. Step 2: Convert to fraction form
    3,781.83/5,219.06 = 2,209.89/x
  3. Step 3: Cross multiply
    3,781.83x = 5,219.06 × 2,209.89
  4. Step 4: Simplify right side
    3,781.83x = 11,533,537.45
  5. Step 5: Solve for x
    x = 11,533,537.45/3,781.83
  6. Step 6: Final answer
    x = 3,049.72

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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.