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Finding the Fourth Proportional to 3,018.75, 4,525.29 and 2,748.21

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Solution

The fourth proportional to 3,018.75, 4,525.29 and 2,748.21 is: 4,119.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.75 : 4,525.29 = 2,748.21 : x
  2. Step 2: Convert to fraction form
    3,018.75/4,525.29 = 2,748.21/x
  3. Step 3: Cross multiply
    3,018.75x = 4,525.29 × 2,748.21
  4. Step 4: Simplify right side
    3,018.75x = 12,436,447.23
  5. Step 5: Solve for x
    x = 12,436,447.23/3,018.75
  6. Step 6: Final answer
    x = 4,119.73

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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.