Home / 2,508.89-3,748.97-1,912.64

Finding the Fourth Proportional to 2,508.89, 3,748.97 and 1,912.64

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Solution

The fourth proportional to 2,508.89, 3,748.97 and 1,912.64 is: 2,857.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.89 : 3,748.97 = 1,912.64 : x
  2. Step 2: Convert to fraction form
    2,508.89/3,748.97 = 1,912.64/x
  3. Step 3: Cross multiply
    2,508.89x = 3,748.97 × 1,912.64
  4. Step 4: Simplify right side
    2,508.89x = 7,170,401.67
  5. Step 5: Solve for x
    x = 7,170,401.67/2,508.89
  6. Step 6: Final answer
    x = 2,857.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.