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Finding the Fourth Proportional to 3,190.76, 4,759.02 and 3,135.44

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Solution

The fourth proportional to 3,190.76, 4,759.02 and 3,135.44 is: 4,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.76 : 4,759.02 = 3,135.44 : x
  2. Step 2: Convert to fraction form
    3,190.76/4,759.02 = 3,135.44/x
  3. Step 3: Cross multiply
    3,190.76x = 4,759.02 × 3,135.44
  4. Step 4: Simplify right side
    3,190.76x = 14,921,621.67
  5. Step 5: Solve for x
    x = 14,921,621.67/3,190.76
  6. Step 6: Final answer
    x = 4,676.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.