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Finding the Fourth Proportional to 1,949.74, 2,924.81 and 717.14

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Solution

The fourth proportional to 1,949.74, 2,924.81 and 717.14 is: 1,075.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.74 : 2,924.81 = 717.14 : x
  2. Step 2: Convert to fraction form
    1,949.74/2,924.81 = 717.14/x
  3. Step 3: Cross multiply
    1,949.74x = 2,924.81 × 717.14
  4. Step 4: Simplify right side
    1,949.74x = 2,097,488.21
  5. Step 5: Solve for x
    x = 2,097,488.21/1,949.74
  6. Step 6: Final answer
    x = 1,075.78

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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.