Home / 3,857.02-5,783.70-2,761.90

Finding the Fourth Proportional to 3,857.02, 5,783.70 and 2,761.90

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Solution

The fourth proportional to 3,857.02, 5,783.70 and 2,761.90 is: 4,141.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.02 : 5,783.70 = 2,761.90 : x
  2. Step 2: Convert to fraction form
    3,857.02/5,783.70 = 2,761.90/x
  3. Step 3: Cross multiply
    3,857.02x = 5,783.70 × 2,761.90
  4. Step 4: Simplify right side
    3,857.02x = 15,973,996.93
  5. Step 5: Solve for x
    x = 15,973,996.93/3,857.02
  6. Step 6: Final answer
    x = 4,141.54

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Why These Related Problems?

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