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Finding the Fourth Proportional to 1,911.42, 2,863.05 and 1,444.05

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Solution

The fourth proportional to 1,911.42, 2,863.05 and 1,444.05 is: 2,162.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.42 : 2,863.05 = 1,444.05 : x
  2. Step 2: Convert to fraction form
    1,911.42/2,863.05 = 1,444.05/x
  3. Step 3: Cross multiply
    1,911.42x = 2,863.05 × 1,444.05
  4. Step 4: Simplify right side
    1,911.42x = 4,134,387.35
  5. Step 5: Solve for x
    x = 4,134,387.35/1,911.42
  6. Step 6: Final answer
    x = 2,162.99

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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.