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Finding the Fourth Proportional to 3,212.00, 4,817.58 and 872.17

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Solution

The fourth proportional to 3,212.00, 4,817.58 and 872.17 is: 1,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.00 : 4,817.58 = 872.17 : x
  2. Step 2: Convert to fraction form
    3,212.00/4,817.58 = 872.17/x
  3. Step 3: Cross multiply
    3,212.00x = 4,817.58 × 872.17
  4. Step 4: Simplify right side
    3,212.00x = 4,201,733.43
  5. Step 5: Solve for x
    x = 4,201,733.43/3,212.00
  6. Step 6: Final answer
    x = 1,308.13

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1.5x scale

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.