Home / 3,694.21-5,098.55-2,122.00

Finding the Fourth Proportional to 3,694.21, 5,098.55 and 2,122.00

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Solution

The fourth proportional to 3,694.21, 5,098.55 and 2,122.00 is: 2,928.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694.21 : 5,098.55 = 2,122.00 : x
  2. Step 2: Convert to fraction form
    3,694.21/5,098.55 = 2,122.00/x
  3. Step 3: Cross multiply
    3,694.21x = 5,098.55 × 2,122.00
  4. Step 4: Simplify right side
    3,694.21x = 10,819,099.74
  5. Step 5: Solve for x
    x = 10,819,099.74/3,694.21
  6. Step 6: Final answer
    x = 2,928.67

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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.