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Finding the Fourth Proportional to 3,195, 4,794.84 and 1,143

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Solution

The fourth proportional to 3,195, 4,794.84 and 1,143 is: 1,715.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195 : 4,794.84 = 1,143 : x
  2. Step 2: Convert to fraction form
    3,195/4,794.84 = 1,143/x
  3. Step 3: Cross multiply
    3,195x = 4,794.84 × 1,143
  4. Step 4: Simplify right side
    3,195x = 5,480,502.12
  5. Step 5: Solve for x
    x = 5,480,502.12/3,195
  6. Step 6: Final answer
    x = 1,715.34

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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.