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Finding the Fourth Proportional to 1,159.17, 1,738.14 and 673.17

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Solution

The fourth proportional to 1,159.17, 1,738.14 and 673.17 is: 1,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.17 : 1,738.14 = 673.17 : x
  2. Step 2: Convert to fraction form
    1,159.17/1,738.14 = 673.17/x
  3. Step 3: Cross multiply
    1,159.17x = 1,738.14 × 673.17
  4. Step 4: Simplify right side
    1,159.17x = 1,170,063.70
  5. Step 5: Solve for x
    x = 1,170,063.70/1,159.17
  6. Step 6: Final answer
    x = 1,009.40

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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.