Home / 4,092.10-6,138-1,170.40

Finding the Fourth Proportional to 4,092.10, 6,138 and 1,170.40

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Solution

The fourth proportional to 4,092.10, 6,138 and 1,170.40 is: 1,755.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,092.10 : 6,138 = 1,170.40 : x
  2. Step 2: Convert to fraction form
    4,092.10/6,138 = 1,170.40/x
  3. Step 3: Cross multiply
    4,092.10x = 6,138 × 1,170.40
  4. Step 4: Simplify right side
    4,092.10x = 7,183,915.20
  5. Step 5: Solve for x
    x = 7,183,915.20/4,092.10
  6. Step 6: Final answer
    x = 1,755.56

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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.