Home / 3,781.02-5,217.70-2,165.88

Finding the Fourth Proportional to 3,781.02, 5,217.70 and 2,165.88

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Solution

The fourth proportional to 3,781.02, 5,217.70 and 2,165.88 is: 2,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.02 : 5,217.70 = 2,165.88 : x
  2. Step 2: Convert to fraction form
    3,781.02/5,217.70 = 2,165.88/x
  3. Step 3: Cross multiply
    3,781.02x = 5,217.70 × 2,165.88
  4. Step 4: Simplify right side
    3,781.02x = 11,300,912.08
  5. Step 5: Solve for x
    x = 11,300,912.08/3,781.02
  6. Step 6: Final answer
    x = 2,988.85

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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.