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Finding the Fourth Proportional to 1,159.82, 1,729.66 and 1,095.16

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Solution

The fourth proportional to 1,159.82, 1,729.66 and 1,095.16 is: 1,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.82 : 1,729.66 = 1,095.16 : x
  2. Step 2: Convert to fraction form
    1,159.82/1,729.66 = 1,095.16/x
  3. Step 3: Cross multiply
    1,159.82x = 1,729.66 × 1,095.16
  4. Step 4: Simplify right side
    1,159.82x = 1,894,245.80
  5. Step 5: Solve for x
    x = 1,894,245.80/1,159.82
  6. Step 6: Final answer
    x = 1,633.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.