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Finding the Fourth Proportional to 3,889.62, 5,834.43 and 1,582.74

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Solution

The fourth proportional to 3,889.62, 5,834.43 and 1,582.74 is: 2,374.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.62 : 5,834.43 = 1,582.74 : x
  2. Step 2: Convert to fraction form
    3,889.62/5,834.43 = 1,582.74/x
  3. Step 3: Cross multiply
    3,889.62x = 5,834.43 × 1,582.74
  4. Step 4: Simplify right side
    3,889.62x = 9,234,385.74
  5. Step 5: Solve for x
    x = 9,234,385.74/3,889.62
  6. Step 6: Final answer
    x = 2,374.11

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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.