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Finding the Fourth Proportional to 3,883.75, 5,361.75 and 2,973.54

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Solution

The fourth proportional to 3,883.75, 5,361.75 and 2,973.54 is: 4,105.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.75 : 5,361.75 = 2,973.54 : x
  2. Step 2: Convert to fraction form
    3,883.75/5,361.75 = 2,973.54/x
  3. Step 3: Cross multiply
    3,883.75x = 5,361.75 × 2,973.54
  4. Step 4: Simplify right side
    3,883.75x = 15,943,378.10
  5. Step 5: Solve for x
    x = 15,943,378.10/3,883.75
  6. Step 6: Final answer
    x = 4,105.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.