Home / 5,221.80-7,829.58-2,103.24

Finding the Fourth Proportional to 5,221.80, 7,829.58 and 2,103.24

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Solution

The fourth proportional to 5,221.80, 7,829.58 and 2,103.24 is: 3,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.80 : 7,829.58 = 2,103.24 : x
  2. Step 2: Convert to fraction form
    5,221.80/7,829.58 = 2,103.24/x
  3. Step 3: Cross multiply
    5,221.80x = 7,829.58 × 2,103.24
  4. Step 4: Simplify right side
    5,221.80x = 16,467,485.84
  5. Step 5: Solve for x
    x = 16,467,485.84/5,221.80
  6. Step 6: Final answer
    x = 3,153.60

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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.