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Finding the Fourth Proportional to 2,604.40, 3,910.20 and 2,057.20

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Solution

The fourth proportional to 2,604.40, 3,910.20 and 2,057.20 is: 3,088.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,604.40 : 3,910.20 = 2,057.20 : x
  2. Step 2: Convert to fraction form
    2,604.40/3,910.20 = 2,057.20/x
  3. Step 3: Cross multiply
    2,604.40x = 3,910.20 × 2,057.20
  4. Step 4: Simplify right side
    2,604.40x = 8,044,063.44
  5. Step 5: Solve for x
    x = 8,044,063.44/2,604.40
  6. Step 6: Final answer
    x = 3,088.64

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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.