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Finding the Fourth Proportional to 3,755.90, 5,627.10 and 1,803.80

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Solution

The fourth proportional to 3,755.90, 5,627.10 and 1,803.80 is: 2,702.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.90 : 5,627.10 = 1,803.80 : x
  2. Step 2: Convert to fraction form
    3,755.90/5,627.10 = 1,803.80/x
  3. Step 3: Cross multiply
    3,755.90x = 5,627.10 × 1,803.80
  4. Step 4: Simplify right side
    3,755.90x = 10,150,162.98
  5. Step 5: Solve for x
    x = 10,150,162.98/3,755.90
  6. Step 6: Final answer
    x = 2,702.46

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1.5x scale

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.