Home / 3,485.76-5,221.74-2,099.46

Finding the Fourth Proportional to 3,485.76, 5,221.74 and 2,099.46

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Solution

The fourth proportional to 3,485.76, 5,221.74 and 2,099.46 is: 3,145.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.76 : 5,221.74 = 2,099.46 : x
  2. Step 2: Convert to fraction form
    3,485.76/5,221.74 = 2,099.46/x
  3. Step 3: Cross multiply
    3,485.76x = 5,221.74 × 2,099.46
  4. Step 4: Simplify right side
    3,485.76x = 10,962,834.26
  5. Step 5: Solve for x
    x = 10,962,834.26/3,485.76
  6. Step 6: Final answer
    x = 3,145.03

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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.