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Finding the Fourth Proportional to 1,095.41, 1,643.30 and 517.97

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Solution

The fourth proportional to 1,095.41, 1,643.30 and 517.97 is: 777.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.41 : 1,643.30 = 517.97 : x
  2. Step 2: Convert to fraction form
    1,095.41/1,643.30 = 517.97/x
  3. Step 3: Cross multiply
    1,095.41x = 1,643.30 × 517.97
  4. Step 4: Simplify right side
    1,095.41x = 851,169.29
  5. Step 5: Solve for x
    x = 851,169.29/1,095.41
  6. Step 6: Final answer
    x = 777.04

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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.