Home / 2,517.23-3,771.55-1,638.39

Finding the Fourth Proportional to 2,517.23, 3,771.55 and 1,638.39

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Solution

The fourth proportional to 2,517.23, 3,771.55 and 1,638.39 is: 2,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.23 : 3,771.55 = 1,638.39 : x
  2. Step 2: Convert to fraction form
    2,517.23/3,771.55 = 1,638.39/x
  3. Step 3: Cross multiply
    2,517.23x = 3,771.55 × 1,638.39
  4. Step 4: Simplify right side
    2,517.23x = 6,179,265.71
  5. Step 5: Solve for x
    x = 6,179,265.71/2,517.23
  6. Step 6: Final answer
    x = 2,454.79

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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.