Home / 3,780.12-5,671.38-2,047.80

Finding the Fourth Proportional to 3,780.12, 5,671.38 and 2,047.80

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Solution

The fourth proportional to 3,780.12, 5,671.38 and 2,047.80 is: 3,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.12 : 5,671.38 = 2,047.80 : x
  2. Step 2: Convert to fraction form
    3,780.12/5,671.38 = 2,047.80/x
  3. Step 3: Cross multiply
    3,780.12x = 5,671.38 × 2,047.80
  4. Step 4: Simplify right side
    3,780.12x = 11,613,851.96
  5. Step 5: Solve for x
    x = 11,613,851.96/3,780.12
  6. Step 6: Final answer
    x = 3,072.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.