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Finding the Fourth Proportional to 2,908.89, 4,014.22 and 1,582.61

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Solution

The fourth proportional to 2,908.89, 4,014.22 and 1,582.61 is: 2,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.89 : 4,014.22 = 1,582.61 : x
  2. Step 2: Convert to fraction form
    2,908.89/4,014.22 = 1,582.61/x
  3. Step 3: Cross multiply
    2,908.89x = 4,014.22 × 1,582.61
  4. Step 4: Simplify right side
    2,908.89x = 6,352,944.71
  5. Step 5: Solve for x
    x = 6,352,944.71/2,908.89
  6. Step 6: Final answer
    x = 2,183.98

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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.