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Finding the Fourth Proportional to 2,651.64, 3,981.06 and 1,827.87

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Solution

The fourth proportional to 2,651.64, 3,981.06 and 1,827.87 is: 2,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.64 : 3,981.06 = 1,827.87 : x
  2. Step 2: Convert to fraction form
    2,651.64/3,981.06 = 1,827.87/x
  3. Step 3: Cross multiply
    2,651.64x = 3,981.06 × 1,827.87
  4. Step 4: Simplify right side
    2,651.64x = 7,276,860.14
  5. Step 5: Solve for x
    x = 7,276,860.14/2,651.64
  6. Step 6: Final answer
    x = 2,744.29

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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.