Home / 1,634.20-2,450.54-479.72

Finding the Fourth Proportional to 1,634.20, 2,450.54 and 479.72

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Solution

The fourth proportional to 1,634.20, 2,450.54 and 479.72 is: 719.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.20 : 2,450.54 = 479.72 : x
  2. Step 2: Convert to fraction form
    1,634.20/2,450.54 = 479.72/x
  3. Step 3: Cross multiply
    1,634.20x = 2,450.54 × 479.72
  4. Step 4: Simplify right side
    1,634.20x = 1,175,573.05
  5. Step 5: Solve for x
    x = 1,175,573.05/1,634.20
  6. Step 6: Final answer
    x = 719.36

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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.