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Finding the Fourth Proportional to 2,898.27, 3,999.81 and 2,793.71

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Solution

The fourth proportional to 2,898.27, 3,999.81 and 2,793.71 is: 3,855.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.27 : 3,999.81 = 2,793.71 : x
  2. Step 2: Convert to fraction form
    2,898.27/3,999.81 = 2,793.71/x
  3. Step 3: Cross multiply
    2,898.27x = 3,999.81 × 2,793.71
  4. Step 4: Simplify right side
    2,898.27x = 11,174,309.20
  5. Step 5: Solve for x
    x = 11,174,309.20/2,898.27
  6. Step 6: Final answer
    x = 3,855.51

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1.5x scale

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.