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Finding the Fourth Proportional to 2,602.92, 3,906 and 1,898.90

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Solution

The fourth proportional to 2,602.92, 3,906 and 1,898.90 is: 2,849.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,602.92 : 3,906 = 1,898.90 : x
  2. Step 2: Convert to fraction form
    2,602.92/3,906 = 1,898.90/x
  3. Step 3: Cross multiply
    2,602.92x = 3,906 × 1,898.90
  4. Step 4: Simplify right side
    2,602.92x = 7,417,083.87
  5. Step 5: Solve for x
    x = 7,417,083.87/2,602.92
  6. Step 6: Final answer
    x = 2,849.52

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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.