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Finding the Fourth Proportional to 2,676.93, 3,694.47 and 1,557.91

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Solution

The fourth proportional to 2,676.93, 3,694.47 and 1,557.91 is: 2,150.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.93 : 3,694.47 = 1,557.91 : x
  2. Step 2: Convert to fraction form
    2,676.93/3,694.47 = 1,557.91/x
  3. Step 3: Cross multiply
    2,676.93x = 3,694.47 × 1,557.91
  4. Step 4: Simplify right side
    2,676.93x = 5,755,651.76
  5. Step 5: Solve for x
    x = 5,755,651.76/2,676.93
  6. Step 6: Final answer
    x = 2,150.09

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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.