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Finding the Fourth Proportional to 2,898.87, 3,997.50 and 2,480.61

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Solution

The fourth proportional to 2,898.87, 3,997.50 and 2,480.61 is: 3,420.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.87 : 3,997.50 = 2,480.61 : x
  2. Step 2: Convert to fraction form
    2,898.87/3,997.50 = 2,480.61/x
  3. Step 3: Cross multiply
    2,898.87x = 3,997.50 × 2,480.61
  4. Step 4: Simplify right side
    2,898.87x = 9,916,238.48
  5. Step 5: Solve for x
    x = 9,916,238.48/2,898.87
  6. Step 6: Final answer
    x = 3,420.73

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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.