Home / 3,961.53-5,943.29-1,188.20

Finding the Fourth Proportional to 3,961.53, 5,943.29 and 1,188.20

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Solution

The fourth proportional to 3,961.53, 5,943.29 and 1,188.20 is: 1,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.53 : 5,943.29 = 1,188.20 : x
  2. Step 2: Convert to fraction form
    3,961.53/5,943.29 = 1,188.20/x
  3. Step 3: Cross multiply
    3,961.53x = 5,943.29 × 1,188.20
  4. Step 4: Simplify right side
    3,961.53x = 7,061,817.18
  5. Step 5: Solve for x
    x = 7,061,817.18/3,961.53
  6. Step 6: Final answer
    x = 1,782.60

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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.