Home / 3,815.96-5,265.98-2,137.35

Finding the Fourth Proportional to 3,815.96, 5,265.98 and 2,137.35

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Solution

The fourth proportional to 3,815.96, 5,265.98 and 2,137.35 is: 2,949.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.96 : 5,265.98 = 2,137.35 : x
  2. Step 2: Convert to fraction form
    3,815.96/5,265.98 = 2,137.35/x
  3. Step 3: Cross multiply
    3,815.96x = 5,265.98 × 2,137.35
  4. Step 4: Simplify right side
    3,815.96x = 11,255,231.67
  5. Step 5: Solve for x
    x = 11,255,231.67/3,815.96
  6. Step 6: Final answer
    x = 2,949.52

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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.