Home / 2,758.50-4,137.75-2,620.08

Finding the Fourth Proportional to 2,758.50, 4,137.75 and 2,620.08

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Solution

The fourth proportional to 2,758.50, 4,137.75 and 2,620.08 is: 3,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.50 : 4,137.75 = 2,620.08 : x
  2. Step 2: Convert to fraction form
    2,758.50/4,137.75 = 2,620.08/x
  3. Step 3: Cross multiply
    2,758.50x = 4,137.75 × 2,620.08
  4. Step 4: Simplify right side
    2,758.50x = 10,841,236.02
  5. Step 5: Solve for x
    x = 10,841,236.02/2,758.50
  6. Step 6: Final answer
    x = 3,930.12

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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.