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Finding the Fourth Proportional to 2,095.41, 3,143.01 and 634.68

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Solution

The fourth proportional to 2,095.41, 3,143.01 and 634.68 is: 951.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.41 : 3,143.01 = 634.68 : x
  2. Step 2: Convert to fraction form
    2,095.41/3,143.01 = 634.68/x
  3. Step 3: Cross multiply
    2,095.41x = 3,143.01 × 634.68
  4. Step 4: Simplify right side
    2,095.41x = 1,994,805.59
  5. Step 5: Solve for x
    x = 1,994,805.59/2,095.41
  6. Step 6: Final answer
    x = 951.99

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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.