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Finding the Fourth Proportional to 3,144.00, 4,338.41 and 1,817.67

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Solution

The fourth proportional to 3,144.00, 4,338.41 and 1,817.67 is: 2,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.00 : 4,338.41 = 1,817.67 : x
  2. Step 2: Convert to fraction form
    3,144.00/4,338.41 = 1,817.67/x
  3. Step 3: Cross multiply
    3,144.00x = 4,338.41 × 1,817.67
  4. Step 4: Simplify right side
    3,144.00x = 7,885,815.11
  5. Step 5: Solve for x
    x = 7,885,815.11/3,144.00
  6. Step 6: Final answer
    x = 2,508.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.