Home / 4,921.21-7,380.41-1,634.32

Finding the Fourth Proportional to 4,921.21, 7,380.41 and 1,634.32

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Solution

The fourth proportional to 4,921.21, 7,380.41 and 1,634.32 is: 2,451.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.21 : 7,380.41 = 1,634.32 : x
  2. Step 2: Convert to fraction form
    4,921.21/7,380.41 = 1,634.32/x
  3. Step 3: Cross multiply
    4,921.21x = 7,380.41 × 1,634.32
  4. Step 4: Simplify right side
    4,921.21x = 12,061,914.77
  5. Step 5: Solve for x
    x = 12,061,914.77/4,921.21
  6. Step 6: Final answer
    x = 2,451.01

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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.