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Finding the Fourth Proportional to 1,635.19, 2,453.19 and 480.94

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Solution

The fourth proportional to 1,635.19, 2,453.19 and 480.94 is: 721.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.19 : 2,453.19 = 480.94 : x
  2. Step 2: Convert to fraction form
    1,635.19/2,453.19 = 480.94/x
  3. Step 3: Cross multiply
    1,635.19x = 2,453.19 × 480.94
  4. Step 4: Simplify right side
    1,635.19x = 1,179,829.26
  5. Step 5: Solve for x
    x = 1,179,829.26/1,635.19
  6. Step 6: Final answer
    x = 721.53

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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.